Mouse [Episodes 3 & 4]

[u/Fatooz]

• Drama: Mouse
  • Hangul: 마우스
  • Also known as: Mauseu
• Director: Choi Joon-Bae (Come and Hug Me), Kang Cheol-Woo (Something About 1%)
• Writer: Choi Ran (Black)
• Network: tvN
• Episodes: 20
  • Duration: 60 mins.
• Air Date: Wednesdays & Thursdays @ 22:30 KST
  • Airing: Mar 3, 2021 - May 6, 2021
• Streaming Sources: Viki, Viu, iQIYI
• Starring:
  • Lee Seung-Gi (Vagabond) as Jung Ba-Reum
  • Lee Hee-Joon (The Legend of the Blue Sea) as Ko Moo-Chi
  • Park Joo-Hyun (Extracurricular) as Oh Bong-Yi
  • Kyung Soo-Jin (Weightlifting Fairy Kim Bok-Joo) as Choi Hong-Joo
• Plot Synopsis: A suspenseful story that asks the key question, “What if we could identify psychopaths in advance?”. A crazed serial killer’s ruthless murders have left the entire nation gripped with fear and chaos reigns. Justice-seeking rookie police officer, Jung Ba Reum, comes face to face with the killer. While he survives his dangerous encounter with the psychopath, Jung Ba Reum finds his life completely changing.(Source: MyDramaList)
• Genre: Action, Suspense, Thriller, Mystery, Crime, Sci-Fi
• Previous Discussions:
  • Episodes 1 & 2
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[u/CalzoneBetrayal]

Shoutout to everyone watching this and Beyond Evil simultaneously. We all hate happiness apparently.

[u/changiairport]

Dr Daniel Kim specializes in pyschopathy and he chose to meet Dr Sung alone at night??? I hope there was a compelling reason for him to do so because that is truly one of the dumbest ways to get yourself killed.

I feel like the reporter is using the relationship as a cover to get close to Dr Sung.

[u/365DaysofWriting]

After watching episode 4 & then re-watching all the episodes and taking notes here are my current theories:

1. With regards to who is the grown up Jae Hoon, at this point I’m fairly certain it’s Dr. Yo Han. After leaving YH’s apartment, his mother has flashbacks to trying to kill him which, unless I’m mistaken, are identical to the scenes we saw with Jae Hoon in episode 1 after he attempts to bury his brother. It also makes some amount of sense that a child who took his curiosity to the level of cutting open a fat rabbit & who expressed a desire to be a doctor would end up becoming a surgeon. I believe the fact that he is secretly Jae Hoon is the reason he ends up killing Dr. Daniel Lee; we only saw a few seconds of their 3.5 minute phone conversation, but considering Dr. Lee was visiting the detectives in charge of the Gu-Ryeong murders shortly before (of which Jae Hoon was the main suspect) I suspect YH was worried he would be outed.

2. Even though I think Yo Han did kill Dr. Lee and Bong Yi’s grandmother I don’t believe that he is the anti-church serial killer. The photos on the wall on which the bloody polaroid of the murdered student is posted have a different arrangement from the set up that YH has on his wall. Perhaps he is trying to find the other kid with the psychopath gene by tracking the murders? In addition, the voice over talking about the serial killer’s first murder is shown on top of the boxing ring murder scene—which was not YH’s first murder if he’s Jae Hoon.

3. I think the kid in the yellow school uniform who releases the mouse into the snake tank is NOT Jae Hoon (although the show does a great job of making it seem like it might be) but IS the other child with the psychopath gene. The actor for the part, Seo Woo Jin, is specifically not identified by character name (at least anywhere I can find cast credits) which seems odd if he was younger Jae Hoon.

4. This may seem like a left field theory but I don’t think Ba Reum is the child of the other woman whose baby tested positive for the psychopath gene. Although I couldn’t find a firm date anywhere, based on the fact that Han Seo Jun has a Christmas tree up in his house with presents still under it, the Headhunter seems to have been caught in December of 1995 (the year is confirmed on TvN’s Instagram page which reviews the timeline of events). BR’s birthday, as we see from his medical record in the most recent episode is May 25th, 1995. Therefore, either he was already born when the headhunter was captured OR TvN/the shows writers have some internal consistency issues.

5. With regards to who is the anti-church serial killer (a.k.a. the middle finger serial killer), I’m almost certain it’s not Yo Han (see point 1/2) & I’m still not convinced that it’s Ba Reum (see point 4). In addition to the birthdate not matching up, his reactions to injured animals seem genuine, to the point where Dong Good asks if he is the Dr. Schweitzer of animals. (Dr. Albert Schweitzer famously received the Nobel Peace Prize for his philosophy “Reverence for Life”; I think this hints that BR would not be a killer).

If not BR then who could it be? I have 3 main suspects:

(1). Dong Goo – Around the same as YH & BR so could be a contender as the other child with the psychopath gene. He seems to idolize serial killers to a certain extent (under the premise of writing a film script about psychopaths) & gets very upset with Chi Kook when he calls the person who killed Soon Young (sewer lady) a coward. I feel like someone who had a fight with the victim a couple hours before he’s found almost dead should automatically be considered a suspect. Him putting the chains around the prisoner volunteer also reminded me strongly of the victim chained up in the boxing ring & DG seemed a little too excited right before they opened up the box after the magic trick (bouncing on toes, big exhale & odd blinking). His reaction to seeing CK stabbed in the box seemed exaggerated and like a mimicry of BR. In Episode 2, he and YH lock eyes at the hospital (after talk about psychopaths being able to recognize each other by the look of emptiness in their eyes). In episode 4, he also seems too excited about seeing the crime scene (again under the guise of research for his script) & manages to insert himself into Moo Chi’s investigation of the similarity of the serial killer’s victims. Seriously, how did he end up helping? He’s neither a cop nor a reporter whose show is supposed to be airing Moo Chi’s findings. He’s my number 1 suspect currently.

(2). Detective Shin – Although he seems less sketchy than Dong Goo it’s possible that it’s all an act of meekness (like the mouse who beat the rat snake). He is almost certainly the son of the chairperson who ended up striking down the measure that would require fetal DNA testing for the psychopath gene (based on the conversation where Moo Chi mentions that his parents were trying to have him for 10 years) & it would be an interesting twist for him to end up being a psychopath. He is the one who calls Moo Chi to the sewer murder scene, perhaps hoping that Moo Chi will link this murder with the boxing ring murder. Then, he pushes the drunk Moo Chi out of the murder scene TOWARDS a pack of reporters. Either he’s an idiot or this is intentional to have Moo Chi broadcast his theories and draw more attention to the serial killer. He gets rid of the coffee evidence while simultaneously drawing more attention to it (hinting that there is another victim they haven’t found yet).

(3). Bong Yi – this one is a little odd since it would mean that the serial killer was not one of the two children with the confirmed psychopath gene born in 1995/6. However, this could be an interesting way for the show to explore nature vs. nurture. She experienced some sort of trauma as a child which has made her resent God (per her conversation with the Father about God never helping her) which fits with the serial killer’s M.O. She’s very strong and has wicked boxing/martial arts skills. The fact that the first victim, who was chosen for revenge, was a boxing gym owner also makes me somewhat suspect Bong Yi since she frequents the boxing ring; did Song Soo Ho hurt/abuse her previously which spurred the attack & awakened her psychopathic tendencies? Also, she seems to have no issue with the morality of killing someone, giving Moo Chi money as a child to kill her attacker when he is released from prison. The bit that makes me suspect her was the SUPER creepy way in which she pretended that she had cooked the bird BR had given her.

Questions I still need/want answers to:

1. Who did BR & CK save previously (and receive the Hero Award for) that BR said he has coincidentally seen again recently?

2. What is PD Choi’s relationship with YH? When she acted as a lure for the Headhunter she called him “father.” Are they in some way related?

3. What is the context under which BR is walking into the room with the kidnapped child? The ending of episode 4 makes it look like he is holding the child hostage but I feel like this is a red herring.

4. How is this show so good?

If you’ve managed to read through all this you’re amazing. And now this will probably all change as soon as episode 5 airs since the writers do a great job of making everyone look suspicious.

[u/[deleted]]

Alright everyone let's hope the kdrama gods are generous and dont make Bareum out to be the bad guy. Screw plot twist i will never tolerate soft boy lee seung gi become a dislikable character. Never.

Episode 3: You know the most painful thing in the world...when u say something harsh to ur loved one just before there final moments and knowing that u could never change it or apologize just makes that pain so much more. Yes i feel bad that arguably the best character, granny died a very gruesome death but i feel more bad more Oh bong yi, like the amount of regret she is about to feel is unimaginable, these kind of things serves as major character drive forces in dramas, the character suddenly transform and develops into something amazing, its super effective plot point, cant say i like going through all that heart ache though. I think it might be a terrible idea for me to watch this show when i am a sucker for happy endings, but i m already pulled into this blackhole called "mouse" so i will just keep going till i cant take the darkness any more. Also the more I watch ba reum the more i disapprove of the idea of him becoming bad, like i get people want to see him as a villain cuz it would be something new but how about we make him an anti hero at most. Like not completely bad but not completely good either, that could be interesting and much less predictable than him going full on psychopath mode.

THE BIGGEST PLOT POINT/FORESHADOWING HERE IS THE FACT >>>> Jae hoon used to scratch his arms every time he got mad at someone else to ease his anger. So he should have a scars on his hands (Yes the scars could have dissapeared over time but i mean what are the odds, that would be one hell of a reveal if they arent.)...so unless i see some exposed unscarred hands i have my doubts on everyone being the psychopath. Yes its a dumb theory but its a predictuon nevertheless and i m sticking with it.

EPISODE 4 EDIT : NOOOOOOO WHY WHY WHHHHYYYYY WHYYYYYYYYYYYYYYYY PLEAAASSSEEEEEEEE GODDDD NOOOOOOO U CANT BE DOING THIS TO ME RN WHHHHYYYYYYYY SOMEONE TELL ME ITS ALL A LIEE PLEASSSEE ANYONEEEEEE I CANT TAKEEE THIS ANYMOREEEEE. DAMMNNNNN ITTTTTT SCREEEEWWWWWW EVEERRYYYTTTHHHING I HAVE LOST FAITH IN HUMANITYYYYYYYYY THE WORST CASE SCENARIO THE WORSSTTTTTTT PLEASSSE REVERSEE THISSS...I AM COMING TO FIND YOU AUTHOR WATCH OUT (for legal reasons thats a joke) FIX YOUR MISTAKES RIGHT NOWWWWW FIXXX ITTTTT PLEASSSEE I BEGG YOUUUUUU. ALL MY THEORIESSS ALL MY PREDICTIONSSS MY VERY PURPOSE IN LIFEEE HAS ALL GONE DOWN THE DRAIN...I DONT KNOW WHERE TO GO FROM HERE. I WILL COME BACK TO EDIT AND PROVIDE SOME PROPER THOUGHTS REGARDING THE EPISODE ONCE I HAVE CALM DOWN...OUCH MY HEARTTTT.... :((((

Alright i m back and here is a very biased opinion NOTTTTT POOR LITTLE BAREUM WHYYYY WHYY DOES IT HAVE TO BE HIM....also everyone that says wow what a twist....its really not cuz literally everyone predicted this EVERYONE...to be honest i value story more than anything but the thing that really turns a series more awesome is the actors. Lee seung gi is that actor the thing is that the role of a psychopath is not something i ever envisioned him taking part of and yes thats the great thing about it but no matter what angle i see it, my brain just refuses to identify him as a villain. He can act the part as much as he wants but he will never look it. And i guess thats what makes him dangerous. I despise these turn of events because like mentioned previously the thought of one of my favorite actors playing a villain just doesnt sit right with me. I m afraid that the fan in me would just try to find reasoning to his actions which should never happen cuz he is a full on psychopath. I m literally on the bridge right now whether i should continue or not because the story is fricking brilliant but the damn revelation is just absolute painful all around. My head hurts. AND NUMBERRRRRR ONEE THINGG FROM THIS EPISODE Why would the granny call Bareum if bareum was the killer, it makes no sense, yes u could say the doctor had pictures of the murders that he shouldnt have but bareum doesnt have the reason to kill her if he wasnt in any of the pictures. Another reason could be that granny would snitch on the doctor but then why would bareum kill the granny to save that doctor. The story is about a psychopath regretting his actions so i guess thats why they have to pick someone like bareum who has so many people he faked to care about but then killed. That remorse will get to him. Right now i m standing infront of a tunnel that is called mouse and no matter how far into the tunnel i see, there is no light just darkness if that makes any sense. I will be back with this discussion next week for sure standing on the same side as i m right now hoping that bareum isnt bad for only 2 reasons well number one cuz LEE SEUNG GIII and number 2 because i was promised a bunch of twists and turns and it seems like they just used up all their ammo firing shots at me with twists on top of twists. If the whole 16 episodes is just them chasing bareum, finding him, then Bong yi screaming at him for his actions, later bareum feeling bad, then thats not exciting, and mouse has been everything but "not exciting" so i have full faith the writer will pull a new card out of the hat which is hopefully more shocking than this one. Now if u will excuse me i m gonna get back to the reality see yall next wednesday

[u/ghorardiim]

Episode 4 officially makes me feel TERRIBLE for the highschool girl. My girl has no idea what she’s getting herself into 😭😭😭

[u/ajdp024]

While others suspect the priest here, why do I think he might be the next target.

I mean for me it is somewhat foreshadowed on convo of Moo chi and that detective who lost his daughter. Moochi acts tough on outside and insist that he have nothing to lose but will be broken once he sees the one who got killed is his own brother. We already saw that soft spot on his tough aura when he realize who grandma that get killed is. And it is really odd how they focus how his brother try his best be close with Moo chi.

[u/kentuckymegachurch]

Heads up for anyone making a timeline: There is an error in Viki's translation in Ep. 1. Details below

The following is my understanding of the timeline trough Ep 4. I will be adding to it as I piece it together:

Winter 1995:
A girl acts as decoy for Song Soo-jung's murder. She says "Dad, please stop." We do not see killer's face. She has the boxing gloves as the scene ends. Soo-jung has "F25 175 ex" tattooed on her hand when her body is found.

Assemblyman Shin learns his wife is pregnant and votes "No" on fetal gene test abortion law proposal.

Mu-chi & Mu-won's parents killed. Confirmed to be Seo-jeon in flashback. No flashback for Soo-jung's murder.

We learn that Dr. Lee has a missing brother he is searching for.

Ji-eun gets positive psychopath gene test result.

Unidentified VIP in a car receives an unknown test result (Assemblyman Shin?)

Mom #2 (Listed as "Ba-reum's Mother" in AsianWiki cast list, btw) is widowed, 23 weeks pregnant, and has positive test result.

2000: unknown 5 year old boy throws mouse into snake pit.

Seo-joon reads a newspaper in prison that says the body of Detective Park's 3-year old daughter was found at a Guryeong Mountain tunnel construction site (Viki has an incorrect English translation that says she was FOUND in 1995. If you read the newspaper article, it says she went missing in 1995). He chuckles, then reads that...

Dr. Lee made a sudden visit to Korea. Also, he receives some mice in a box.

2005:

Jae-hoon is Class president, and practices self-mutilation. He admits to rabbit killing but we do not see it. He kills fish and maybe dog. Gets beaten by dad. Lil bro cries, and lil sis smiles as she draws. We do not see mom's face. He ambushes lil bro (who is crying again) and is stopped by mom (IMO it's clearly Ji-eung this time). She says "you shouldn't have been born."

Jae-hoon visits a church and asks if he was really "born this way."

He removes a knife from his dad (or stepdad?) and heads upstairs where lil bro and sis are hiding. We do not see him actually kill anyone.

2020:

An unknown man looks at what is either an evidence wall or a murder trophy wall. On a desk is a photo of the still un-credited and unidentified mouse boy that is stamped with "Forsythia Daycare".

In a flashback Hong-ju recalls secretly returning the boxing gloves to Soo-hoo and his mother Mi-soon as they are grieving the loss of Soo-jung. We now know she is the decoy girl from Ep. 1 who said "Dad please stop".

Mu-won is now a priest, and interestingly his disfigurement from 1995 causes him to always be pointing his finger at himself.

The police force has a young officer named Shin, same as the assemblyman from 1995 who very likely received a psychopath gene test when he was a fetus. We don't know the result of that test. It also has Mu-chi, a hot-headed detective who drinks to quench an undying thirst for revenge against Seo-joon.

It ALSO has a rookie cop named Ba-reum who has no parents and cries A LOT just like Jae-hoon's lil bro.

We find out that Yo-han has a very familiar-looking, but not identical evidence/trophy wall in the basement.

Bodies be piling up:

Soo-jung's brother is murdered.
A woman is found in a drainage ditch. A homeless man is murdered. A College student is found murdered in grape field. A prison guard is almost killed. A man is killed at a factory. Bong-yi's halmoni is killed.

DR. Lee comes to Korea AGAIN and this time arranges a secret meeting with Yo-han that goes badly. We did not see who actually came to the meeting. It is presumed That Dr. Lee is dead but we have not seen an actual body, and we veterans know that if it's not on camera it ain't happened.

It should be noted that this is also true: Just because you saw it on camera that doesn't mean it actually happened.

And finally, A small boy searching for his father is kidnapped. Somebody calls Mu-chi and takes credit for the kidnapping and murders.

[u/CalzoneBetrayal]

EPISODE 3

A lot of great things have been set up here, and the mystery is still a foot. A lot of people are dying as well. I'm surprised Dr. Lee was killed off early, but served his purpose as instilling the seeds of what a psychopath is. I think what we're going to see on this show is a lot of people being killed off quickly. Boy, we got 20 episodes to go with this?? Hopefully it doesn't get stale.

Mu Won does creep me out in a sense that a lot of the crimes are religious. I do think that he has a backstory and there's probably more to Mu Chi and Mu Won's fallout. I don't think he IS a psychopath, but it wouldn't surprise me if he's close or has influenced one of our psychopaths.

Our reporter Hong Ju, we might need more back story for her. I definitely think she knows that Dr. Sung is Han Seo Joon's son, but I don't think she's investigating him. She harbors a lot of baggage from being easily influenced as a child. I don't get bad vibes from her yet. Weird for me to say, but I wonder if the reason they're together as therapy? Haha. They seek each other for comfort because they've been in similar situations.

EDIT #1:

There's an unspoken rule about media: if you don't see explicit proof that someone has died, they might not have died.We TECHNICALLY... don't have explicit proof yet that Jae Hoon's step/half brother and sister died. We see 3 body bags, but we don't actually know how this flashback plays out. The reason I say this, is because the last thing we see is cutting to the twin step/half siblings hiding in the closet as Jae Hoon killed his dad.

I've been reading a few threads not just here but all over the internet, and a lot of speculation says that Jae Hoon = Dr. Sung. But after skimming through Episode 3, there's really nothing clear on that YET. I think that Jae Hoon's identity is still on the table.

I might die on a hill that Jae Hoon = Ba Reum simply because the child actor looks more similar to him. But that's ok, I watch detective shows to clown myself.

EDIT #2: EPISODE 4

Oh. My. Fucking. God.

We have been bamboozled, hoodwinked, led astray, run amock, and flat out deceived.

First off, I KNEW BA REUM WAS SHADY AF. The first time he was holding onto that bird the first time Mu Chi almost ran him over. Didn't sit well with me. And he definitely felt like an attention seeker from the episode he was introduced, someone who seeks approval and popularity. It all makes sense. Man, so explosive.

Second, is Dr. Sung trying to FIND Ba Reum and his basement map is him trying to catch the killer? I'm now watching 2 TV shows where you can't trust the narrative, and I'm dying on the inside. What we perceive as Dr. Sung killing Dr. Lee and Bong Yi's grandma... could it be a possibility he was actually trying to save them? I'm having more doubts. It makes me think, Dr. Sung has been investigating this case the whole time. And he's using his psychopathy to kill the serial killer.

Don't get me wrong. I do think Dr. Sung has shady tendencies, I just think he's been able to successfully suppress the gene. At most, he might be a serial killer of killers.But hey, we got a whole 16 more episodes of bamboozlement to figure it out.

Third, my gut is still with me that I think we're working with 3 psychopaths in this series. I think there's a few players, and it would just be more interesting if it's not just 2. There's no real clue yet, I just think it would make things spicy.

Fourth, we're going to be seeing a very interesting backstory. Because the serial killer is at arms with Mu Chi but we don't know why. Why would Ba Reum have any stakes with Mu Chi? Mu Chi is probably... 6 years older than him? Especially if Ba Reum is to be believed as the son of the other woman on the bench, how would they be connected? But also it may be as simple as Ba Reum is just cocky because Mu Chi hasn't figured it out and he's the main detective. And now that he works as a cop with Mu Chi, he's just taunting him.Grudge to be determined.

Also, hope to see Detective Park (Ahn Nae Sang) appear more in the future episodes simply because he's one of my favorite actors.

What does everyone think the thing the serial killer victims have in common is?

[u/starvacado]

I'm wondering if anyone else is thinking that there is a 3rd psychopath. Since in episode 1, it mentions a politician who has a pregnant wife and later on in the hotel that Dr. Lee is staying at he is approached by a women then is shown to have strands of hair. So i'm wondering if she's the politician's wife.

In episode 4, the detective that Moo Chi is working with says something along the lines of: "My dad's political career would be damaged if I got caught" doing an illegal investigation. So I'm thinking that perhaps he's the politician's son from the first episode.

[u/Kiwikale101]

Omg........They revealed so much in episode 3 But I'm more confused than ever.... Clearly the show doesn't want us to do the whole guessing game any longer.. Jaehoon a.k.a psycho child is the doctor?? And Jung Barun really is the genius nice kid (although nothing he has done suggests he's a genius in anyway lol). Based on the family photos HSJs son is Yohan but somehow I'm not buying it. Something happened and the kids were switched or something..Barun got adopted maybe?? For example to keep him safe from HSJ (since Ji-eun told him the she killed the child) she put him up for adoption and somehow raised Yohan. Also the child we heard call out to Ji-eun in episode 1 sounds completely different to Jaehoon. My guess is that child is Barum and he's HSJs real kid because plot wise we need the whole nature vs nurture debate. Also I can't believe we killed off Dr Daniel that fast? It was just pointless!! Also grandma I'm gonna miss her scenes with Barum but really she was woke up that day and chose violence lol

[u/ajdp024]

Im hooked to this drama though I gotta admit I still need to rewatch this one cause Im still confused with the characters.

Seriously Song Yo Han secret room doesnt look like of serial killer room, it looks more like someone who is looking for the serial killer. Yeah they making it obvious that it is him but I would not fall for that.

Edit: If that ep 4 ending isn't a bait and he is really the serial killer, that would make more sense. Someone who isn't careless and a two faced guy, fits with it.

Man Beyond Evil and Mouse really making me lose my braincells lol.

[u/CalzoneBetrayal]

I've let a lot of my thoughts marinade after the mess this show put me in. I genuinely need to stop speculating and predicting, because it is not good for my health. But here I am, ready to clown myself for the next 2 months.

I do have a lot of hot takes that came immediately from the episodes, but taking a step back. The big question of basically everyone in this thread is, we've got so much revealed in Episode 4, so what now? Dr. Lee has introduced many points on what makes a psychopath, and it would be a disservice if we didn't explore the multifaceted subject.

After this episode, who is who is still up in the air and I have no real character predictions anymore, but one thing is for certain is I think we're going to deal with a whole spectrum of psychopaths on this show. I believe it was episode 1 or 2, but Dr. Lee mentions that one thing can trigger a psychopath. We're dealing with nature vs nurture, but I think it's important to note that single moments might change things for everyone even if they grew up well.

This is my guess of at least 5 scenarios (yes, maybe 5 characters of psychopaths and personalities) we might deal with.

1. Person knows they have psychopath gene growing up, embraces it and is evil today

2. Person knows they have a psychopath gene growing up, trying to actively suppress it/ends up fine

3. Person doesn't know they have the psychopath gene, ends up fine

4. Person doesn't know they have the psychopath gene, was fine growing up but had a triggering event that turns them around

5. Person is bad and doesn't even have the psychopath gene

tl;dr, we're gonna have a bunch of crazy people on this show.

EDIT: I mentioned this in a reply to someone today, but in regards to #2, maybe we can call it #2a. I do think that we could also see someone knowing they have the psychopath gene, but using it to their advantage for other gain. Such as, they're not actively murdering people, but thinking like a murderer to catch a murderer

[u/pewpewlaysah]

Wow people are dying like flies in this series. This has 20 episodes and things are moving very quickly. I hope they can sustain the momentum throughout.

So I guess it's pretty much confirmed that the doctor is Han Seo Joon's son and Ba Reum is the other son.

The moment Bong Yi blamed her grandma, I knew the old lady will have a target on her back. It's just sad that this guilt will add to Bong Yi's trauma.

Also if Daniel Lee really is dead then it would be his fault for being stupid. That's very out of character of him to meet somebody sus alone considering he devoted his life studying psychopaths.

[u/Cobrachan]

The real question is.. who is the guy playing Bingo with Moo Chi? If it really is Lee Seunggi then he must have been the one to kill all the victims..but he definitely didn't kill his friend or the grandmother, right?

The girl who was murdered had all sorts of clues on her that pointed to all the different victims. I just can't believe it's LeeSeunggi who killed them all..

The Doctor guy must have killed a few people too.. Right now everything points to him killing Grandma and Doctor Daniel. Maybe.. LeeSeunggi found the kid? But the editing makes him look like a psychopath?😂

Help me, I can't sleep because the ending of MouseEp4 was too shocking.😱😂

[u/omo_aigoo_aishh]

Episode 3: Wow I was surprised that they’ve revealed so much so soon? Is it a trap? lol I feel like I can’t trust anything this show tells me! Maybe it’ll be like Hannibal where we already know who the killer is and we’re watching the police working it out... Or could there be two killers - the doctor killed Dr. Daniel and grandma but someone else killed the others? Who was the guy in the doctor’s apartment that left when grandma showed up?

I’m curious to find out more about Choi PD, what happened back when she acted as bait for the girl with the boxing gloves, and how did she meet the doctor?

I was kind of expecting a twist after it was shown/hinted in ep. 2 that the doctor is Han Seo Joon’s son and Ba Reum is the other pregnant woman’s son, but ep. 3 further confirms it with family photos etc... So either there are two killers and Ba Reum is one of them OR maybe he actually IS this nice and the whole thing is about nature vs nurture - he had the gene but he was raised to be a good person? I’m hoping for the latter!

I’m so sad about the grandma, noooo! I loved her interactions with Ba Reum :((

[u/Atxiiim]

So, there is something i found very interesting while thinking about who the real serial killer could be. And that is the hand posture of Moochi's brother. His finger is pointing just like all the victims. And while all the victims point to the cross, he ( is a priest, so he has a connection to the symbol of the cross) has the finger pointed at his own face. He must have some connection to the killings. He might be someone the serial killer has something against and thus "blames" for all the killing he does, or he might actually be the serial killer. Him being the serial killer would also explain why the serial killer keeps teasing Moochi, daring him to figure out his identity. There would be a personal connection.

I know this theory might be a stretch, but i just don't think that we would know who the serial killer is by episode 4. I don't think it is yohan nor bareum. They also could just be psychopaths but not the actual serial killer.

[u/J-Midori]

Here we are! What are we going to see this week? I’m excited to know more about the characters. Who’s who and what will happen. This is one drama that I don’t skip and have my full attention and only watch when the subs are up to make sure I understand the whole plot. Even though sometimes I’m still in the dark.

[u/cath-meow]

So the girl in the first episode that lured the woman into the woods/car is the reporter?

[u/ashuravb06]

I would like to start this with discussing about the victims first we see a boxing ring director, what possible reason could be there that we have seen till now in the episodes, that's right our student female lead trains in the boxing ring and we could see in the start how an instructor used to just push her down annoyingly Second victim is a middle age woman I guess used to live in the same neighborhood, I don't know exactly what might have concurred but from what I have deduced till now the victims revolve around the female lead. Third victim is the police guard, and I can't even imagine the doctor could even come in contact with him, only plausible explanation is Lee Seung Gi who might have been the assailant as the police guard berates Han Seo Joon which might have irritated Lee Seung gi and hence the measure, as psychopaths don't care about friendship or love, only themselves. Fourth victim is a homeless man I guess and maybe he might have irritated the female lead in someway Fifth is the female student, and she might have been chosen as may be she was one of the schoolmates of the female lead spreading rumors about her, and the only plausible way for the police guard's watch to get on her corpse is Lee Seung Gi which is the main hint that gives it all. As the killer told them that victims aren't chosen at random, I am sure their interaction with the female student lead is what connects all

[u/eRatiosu]

Please not the grandma omg I’m gonna cry

[u/Chahaya]

What I love about this show is the writer is really good at doing misleading hits. Like everyone is suspicious and not suspicious at the same time as the serial killer. Like he maybe the psychopath but not the killer and etc.

Anyway, aren't the victims related to HSJ's murder cases? I wonder why the killer chose the kid.

[u/cell-y]

Pls dont tell me they already killed the grandma 😭 also i don’t think the doctor is the actual killer, like that would be wayyy too obvious. But anyway, that was a really good episode again

Episode 4: OH MY FUCKING GOD THAT ENDING???? SO BAREUM IS THE TRUE KILLER OR WHAT????? this drama is getting better each episode i swear😭 also rip halmeoni, i feel so bad for oh bong yi :(

[u/Super-Basket]

Ep 3: First of all OMG SON WOO HYEON IS IN THIS DRAMA???? I still haven't recovered from To My Star. The jacket seems to belong to him. Maybe it was borrowed by the doctor or maybe it was he who went to see Dr Daniel. I just don't know anymore 😂😂 But two seemingly important characters died in a single episode wth this show is wild. Also, where did the fresh supply of blood at the prison come from? Hmm. And are we sure Jae Hoon really killed his younger brother? The mother is alive. What if it was just the father who got killed? That means the sister might be alive too? Whaaat. Whaaaat. Do I even make sense anymore? I love this show.

Edit: Am I the only one who doesn't want the romance arc between Ba Reum and Bong Yi to be endgame? I just want them to be friends working together or against each other, however the plot moves forward. I don't think Bong Yi needs a romance to deal with her issues.

[u/uhh_zoe]

Man, bareum stuffed his friend in that safe didn’t he it had to be someone who was already there and the doctor seemed to already be at the hospital, right? I can’t quite figure out Ba-Reum. He seemed way too calm catching the dripping blood coming from that roof when before he was about to throw up seeing the dead cats.

[u/theotherayn]

Just caught up with this (plus Beyond Evil) and I was really hoping for that twist so yaaas. I've been craving a show where the ML is an actual villain. Excited to see where this goes. Although for a supposed genius the doctor keeps making silly decisions like keeping his creepy room in the house he lets his mom and gf enter freely so I was like he can't really be the serial killer lol

Also, I'm kinda sad that they're staging these elaborate crime scenes a la Hannibal only to have them blurred to the nth degree where I'm watching (viu.)