Jump to: About the K-Drama | Plot Summary | Main Cast | Episodes | My Review | Where to Watch | Trailer | Final Thoughts
About Mercy for None
Mercy for None is a gripping 2025 South Korean crime-thriller drama that explores justice, vengeance, and the emotional cost of retribution. Set against a gritty urban backdrop, it tells the story of a prosecutor who uncovers a web of corruption linked to his past. With fast-paced action and intense emotional depth, this K-drama is earning critical acclaim both locally and internationally.
Plot Summary
The story follows Prosecutor Han Do-yoon, a brilliant but cold investigator with a painful past. After his brother’s mysterious death, he stumbles upon a series of cases that all point to the same powerful conglomerate. As he seeks justice, his moral compass is tested, and he’s forced to choose between law and revenge. Twists, betrayals, and raw emotion define each episode.
Main Cast
- Ji Sung as Han Do-yoon – The lead prosecutor haunted by tragedy
- Kim Ji-won as Yoon Se-ra – A journalist and Do-yoon’s former love interest
- Lee Jae-wook as Seo Min-jae – The antagonist with a mysterious link to the case
- Kim Hae-sook as Do-yoon’s mother, adding emotional gravity to the story
Episodes and Format
- Total Episodes: 12
- Runtime: Around 60 minutes per episode
- Genre: Thriller, Crime, Drama
- Director: Kim Sung-hoon
- Network: tvN / Netflix
My Review
Mercy for None offers a strong performance by Ji Sung, whose transformation from a composed prosecutor to an emotionally driven man is compelling. The cinematography is moody and intense, enhancing the narrative tension. The writing keeps you guessing without becoming confusing, and supporting characters provide added depth. Some episodes are heavy, but they reward patient viewers. If you enjoy dramas like “Stranger” or “Vincenzo,” this series is a must-watch.
Where to Watch
You can watch Mercy for None on Netflix with English subtitles. Episodes are released every Friday and Saturday.
Watch the Trailer
Final Thoughts
“Mercy for None” is more than just a revenge thriller — it’s a reflection on justice, trauma, and redemption. With its stellar cast, smart writing, and beautiful direction, it's a drama worth adding to your watch list. Whether you’re a long-time K-drama fan or new to the genre, this series delivers heart and suspense in equal measure.
Ji Sung delivers a gripping performance in 'Mercy for None'
Also read: More K-Drama Reviews on SirangLente
