An outstanding ensemble cast presented us with uniformly unforgettable performances in this addictive crime thriller Korean drama, A Bona fide Killer (2026), starring the always brilliant lead actress Gong Hyo Jin whom I have loved watching for twenty years in dramas like Master's Sun, It's Okay That's Love, Thank You, Jealousy Incarnate, When The Camellia Blooms, Pasta, Snowman, Ruler Of Your Own World, The Greatest Love, Producer, Sang Doo Let's Go To School, Hello My Teacher, When The Stars Gossip and films like A Single Rider, The Most Ordinary Romance, Missing, and Be With You. If you admire her as much as I do then absolutely do not miss this amazing thriller; you will have the hardest time trying to tear yourself away from watching it once you start! There's a reason why almost every reviewer on Viki gave it a perfect 10 grade!

The drama was loosely based on a popular web-toon by Yun, but the drama's dynamite script fleshed the story out in new and mesmerizing ways. No doubt that was because the derivative script was written by the amazing female screenplay writer Kim Eun Hee who has left us with masterpiece after masterpiece, such as Winter Sonata, The Snow Queen, The Prime Minister And I, The Queen's Classroom, My Fair Lady, Live Up To Your Name, and Summer Scent.

I must also add that I was totally bowled over by the phenomenally warm performance of the lead actor in this drama, Jung Jun Won, who played Gong Hyo Jin's loving husband in the story! I hope he wins some big acting awards for this role, he deserves it. I had only previously seen him in the drama Persona with IU, as well as the lovely films The Table and Dong Ju: The Portrait Of A Poet, so I was thrilled to see him land this beautiful lead role as a sacrificial husband who was so devoted to his wife that he helped her in all ways possible as she worked hard to be a good wife to him and a loving mother to their little daughter (adorable child actress Hwang Bom I), despite a very secret double life as a sharpshooter hit-woman towards evil criminals who had escaped the law. I kept thinking to myself: gosh, if all men were as magnificent as THIS husband there would NEVER be any divorces in this world! ;)

Left to Right (Top): Ha Yul Ri, Kim Nam Hee, Heo Jae Ho, Kim Ga Hee
Left to Right (Bottom): Mu Jin Sung, Gong Hyo Jin, Sung Dong Il  

The supporting actors were all terrific too, and every one of them successfully combined melodramatic scenes with moments of laugh-out-loud humor on occasion as well. This is yet another reason why I continue to be addicted to Korean dramas after so many years: their stories combine serious themes with moments of levity and sometimes you aren't sure if you're meant to laugh or cry .... so you end up doing both! Three of my top favorites pictured above include veteran actor Sung Dong Il, whom I have seen in too many dramas to count, and the two younger male actors who were totally delightful to watch in every scene, Mu Jin Sung and Kim Nam Hee, who both played operatives in the secret agency; they were great at both comic relief and melodramatic scenes. I found myself smiling every time they came on screen. All the characters depicted above belonged to a secret organization which specialized in planning assassinations of criminals that the police were never able to capture or bring to justice. These operatives wanted to off them before they could kill or maim other victims in future ever again. 

I also loved the performance of the actor who played the main cop in the story, Lee Sang Yi. As I watched this drama I was also watching the ongoing season two of Bloodhounds in which he also gives a phenomenal performance. He's especially fantastic at physical prowess scenes. Great casting! 

The big question of this story is not who is the sharpshooting killer, because the viewer knows her identity from the beginning, but rather a much more pressing question: how long will she maintain a balance between these two separate lives, as a devoted wife and mother, and an assassin?

The Story:

We follow the quiet double life of Yoo Bona (Gong Hyo Jin), the wife of Kwon Tae Seong (Jung Jun Won), an investigative journalist, and the mother of their cute kindergarten aged daughter, Yul (Hwang Bom I). After a maternity leave of several years, devoted to raising her little daughter to school age, Bona decides to rejoin her previous employer, the Durumi Electronics Company, which is really just a front for a top secret agency that manages professional hit targets of criminals who have escaped justice from the regular city police departments.

Bona takes special interest in assassinating those criminals who have abused or killed children, and gotten away with it, since her own youth had been a rather stressful one, which is revealed in several flashbacks as the story progresses. All her co-workers at the fake electronics company are thrilled to have her back at work, especially the leader Kim Bong Pal (Sung Dong Il) and computer expert Ki Young Do (Mu Jin Sung) who has a secret crush on her, because she had been their star sharpshooter assassin for years before her marriage, with the best skills of the entire group. When she takes up her long distance sharpshooting skills again for them, with several new assassin cases getting lots of attention from the media, she is soon nicknamed Kingfisher by the public, although of course they all assume the assassin must be a male, not a female.

Even Bona's husband Tae Seong has no idea of her double life -- at first. However, he is too good of an investigative reporter not to pick up on clues as time goes on. He then ultimately has to decide if he will shield his wife from regular law enforcement, or eventually turn her in. This decision is even harder for him because he is best friends with the main police chief in their city's police department, Lee Dong Jin (Lee Sang Yi), and feels guilty about lying to him so many times as even Dong Jin begins to suspect Bona's true identity. It also doesn't help matters that Tae Seong's own cute younger sister Kwon Se A (Lee Eun Saem) has an affectionate relationship with police chief Dong Jin's right hand man at the police station, Beom Seong Hoon (Choi Woo Sung). There are a lot of extended family members and friends and co-workers who would be terribly hurt if the truth of who the real Kingfisher is was revealed.

Ultimately we learn that Bona had received her sharpshooting training in communist Russia by an expert shooter nicknamed "Mama" (Moon Jeong Hee), and that a fellow young trainee had been jealous of Bona's superior skills. Her name is Layla Choi (Lee Elijah) and she eventually returns to Korea with the secret intention of confronting Bona, the successful Kingfisher, out of jealousy. She plans on ways to kill Bona and make herself the real Kingfisher, but she doesn't quite understand that too many people love and care for Bona and that they will do everything possible to prevent her murder ... even those in the regular police department who suspect Bona's real identity but have no real proof to arrest her!

 

Will the rival Layla finally succeed in her goal to replace Bona as Kingfisher ... permanently? She certainly has the determination to succeed at her goal but in some ways is a bit messy in her planning and implementation -- after all, she wasn't the most successful trainee under "Mama" -- Bona was! The conflict between these two women comes to a dramatic end, and those last scenes between the two of them were phenomenal! The director of A Bona fide Killer, Yoon Jong Ho (Lovely Runner), was fantastic in directing every scene of this drama. I hope he gets awards for all his hard work.

It was obvious to the viewers that the entire cast of this drama enjoyed working with one another very much, and many fans were expressing at the conclusion their hope that there will be a season two in future. I hope so, too! This was truly one of the top best Korean dramas of 2026. Don't miss it! Enjoy.

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