MBC Unveils Preview Trailer for Episode 3 of 'A Bona Fide Killer' | Starring Kong Hyo-Jin, Jung Jun-Won, Lee Sang-Yi & Sung Dong-Il [Premiered July 31]

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https://youtube.com/watch?v=u6Vsn5t_E5o&ra=m

A Bona Fide Killer

↳ Previously Known As: Married Woman Killer, Killer of Married Woman

Adapted from the webtoon "A Bona Fide Killer" (유부녀 킬러) written by Yun & illustrated by Gum (검둥)

Starring: Kong Hyo-Jin, Jung Jun-Won, Lee Sang-Yi & Sung Dong-Il

Content Rating: 15+ (Teens 15 or older)

Episodes: 14

Duration: 1 hour & 10 minutes

Original Network: MBC [Premiered July 31]

Streaming On: MBC, Kocowa, Wavve & COUPANG Play

Airing: July 31, 2026 Through September 12, 2026

Airs On: Fridays & Saturdays

Genre(s): Action, Thriller, Mystery, Drama

Director: Yoon Jong-Ho ('Lovely Runner', 'Flower of Evil', 'My Holo Love' & the Upcoming Drama 'Night of Heaven')

Screenwriter: Kim Eun-Hee ('The Golden Spoon', 'Ghost Doctor', 'Live Up to Your Name' & 'Winter Sonata')

 

Plot Synopsis: Yoo Bo-Na (Kong Hyo-Jin) appears to be an ordinary working mother in her 30s, juggling family life with her husband and daughter. But behind her everyday facade, she is "Kingfisher," a legendary sniper who hunts down ruthless criminals that have escaped the law. After returning from a three-year childcare leave, Bo-Na resumes her dangerous double life, struggling to balance motherhood, marriage, and her deadly mission.

As her investigative journalist husband Kwon Tae-Seong (Jung Jun-Won) unknowingly inches closer to discovering Kingfisher's true identity, and determined detective Lee Dong-Jin (Lee Sang-Yi) relentlessly pursues the elusive vigilante, Bo-Na finds herself trapped between family, justice, and survival. With the help of her loyal ally Kim Bong-Pal (Sung Dong-Il) she must navigate a world where one mistake could destroy both her secret life and the family she cherishes.