Overview: “A Bona Fide Killer” Kdrama (also known as “Married Woman Killer”) is an MBC original drama series that released on July 31, 2026, and starring Gong Hyo Jin, Jung Jun Won, and Lee Sang Yi. It will tell the story of a married woman who lives a double life and her husband who is desperate to reveal her hidden identity.
| Genre | Drama, Mystery, Thriller, Action |
| Episodes | 14 |
| Watch Online* | Viki |
| Director | Yoon Jong Ho |
| Scriptwriter | Kim Eun Hee |
| Air Time & Schedule | Friday & Saturday at 09:50 PM KST |

Table of Contents
- Synopsis
- Main Cast & Characters
- Still Cuts
- Notes & Facts
- Trailers & Clips
- Episodes 1, 2, 3,…., Highlights
Synopsis
“A Bona Fide Killer” Korean drama story goes like this:-
After three years of maternity leave, legendary assassin Yu Bo Na—code-named “Kingfisher”—makes a dramatic return to her secret organization, shaking up the underworld. Meanwhile, her husband Kwon Tae Sung, a relentless news reporter, begins investigating the reappearance of the feared killer—unaware that the woman he’s chasing is the one he comes home to.
Main Cast & Characters
- Gong Hyo Jin as Yoo Bo Na / Kingfisher (a sales team manager)
- Jung Jun Won as Kwon Tae Seong (Bo Na’s husband/a reporter)
- Lee Sang Yi as Lee Dong Jin (a detective)
Still Cuts







Notes & Facts
- Gong Hyo Jin earlier starred in Korean drama “When the Stars Gossip” (2026).
- Jung Jun Won as earlier starred in Korean drama “Resident Playbook” (2025).
- Lee Sang Yi earlier starred in Korean drama “The Legend of Kitchen Soldier” (2026).
- Previous drama on this time slot of MBC is “Fifties Professionals.”
- This drama is based on webcomic “Yubunyeo Killer” written by Yoon.
Trailers & Clips
This is the official teaser of “A Bona Fide Killer” that shows Bona’s chaotic double life and how easily she changes her role.
Episodes 1, 2, 3,…., Highlights
This is the highlight video of “A Bona Fide Killer” that gives us a glimpse of Bo Na’s life as a working mother and as a sniper.
*Drama is subject to regional availability.







