No Mercy (2025): cast, story & where to watch
2025 · Series · ★ 7
Released in 2025, No Mercy is a crime series.
What it’s about. One phone call was enough to shatter one's entire world. For unknown actress So Min, everything collapses when a voice phishing scam tears her family apart. She is thrust into the darkest side of technology as her missing mother, father's death, and even the stolen voice of her late mother become weapons in a shocking scheme. With nothing left but the will to take revenge, she turns to deepfake technology as her ultimate weapon, infiltrating a vast and merciless syndicate. Along the way, she encounters Ma Seok Gu, a ruthless boss hungry for power, Jeong Hun, a cop torn between truth and loyalty, and Do Jin, a hacker with a sinister smile. Plunging into a web of betrayal and danger with the fake identities she forges, will she exact vengeance, or will they destroy her?
Who’s in it. No Mercy stars Lee Joo-young as Ha So-min, Ji Seung-hyun as Ma Seok-gu, Koo Jun-hoe as Park Jeong-hun and Seo Jin-won as Ha Hyun-jin, among others.
How it landed. With an audience score of 7.0/10, No Mercy has been warmly received by audiences.
Where to watch. In US you can stream it on OnDemandKorea. See the full, country-by-country breakdown on our where to watch No Mercy page.
If you liked it. Fans of No Mercy tend to enjoy Breaking Bad, Better Call Saul, Lucifer and Riverdale.
Frequently asked
- Where can I watch No Mercy (2025)?
- In US, No Mercy is available to stream on OnDemandKorea. Availability varies by country — check our where-to-watch page for every region.
- Is No Mercy worth watching?
- No Mercy holds an audience score of 7.0 out of 10, and is a strong pick if you enjoy crime. Most viewers rate it highly.
- Who stars in No Mercy?
- No Mercy stars Lee Joo-young, Ji Seung-hyun, Koo Jun-hoe, Seo Jin-won and Lee Ji-ha.
- When was No Mercy released?
- No Mercy was released in 2025.