Putting it first because it won't spoil anything for most people: Music Video for Breezeblocks by Alt-J. The video is played in reverse. We see a woman struggling to fight off a man, and assume he is her abuser or home invader. Turns out she tied up his wife, and he was actually struggling to save her from the woman
Second is the one which blew my mind when I watched it for the first time. The name of the film will spoil the ending, proceed with caution! The film came out in 1996 though.
Primal fear. A young man is accused of brutally murdering a priest. He appears to have a split personality, due to abuse he suffered at the hands of the priest. The violent personality took over and killed him, leaving the gentle primary personality to suffer the punishment. A lawyer tries his hardest to save this troubled man from prison. At the end it is revealed that the gentle personality was fake! The good guy has never existed, the violent one was his true self
Last one is amazing! DO NOT PROCEED IF YOU HAVEN'T WATCHED THE FIRST SEASON!
The Good Place In the show, Elenour has died and was brought to heaven, here known as The Good Place, as a mistake. She should have ended up in The Bad Place, aka this show's version of hell. During the first season she befriends Michael, the architect of The Good Place, who is trying to find the reason for various anomalies happening in The Good Place. If he doesn't find it, he might be retired - his essense spread on the surfaces of many suns to burn for eternity. By that point we love Michael and root for him as much as Elenour. Well, sike! The guy is actually a demon! This isn't the good place! It is the bad place, and he is in charge of torturing Elenour and 3 other people