Mercy for None

7.8
2025

Production

Logo for Yong Film
Logo for Studio N

After severing ties with his gang, a former gangster returns to uncover the truth behind his brother's death — embarking on a relentless path of revenge.

Trailers & Videos

Thumbnail for video: Official Trailer [ENG SUB]

Official Trailer [ENG SUB]

Thumbnail for video: Official Teaser [Subtitled]

Official Teaser [Subtitled]

Thumbnail for video: Sneak Peek [ENG SUB]

Sneak Peek [ENG SUB]

Seasons

7 Episodes • Premiered 2025

Still image for Mercy for None season 1 episode 1: Episode 1

1. Episode 1

6.4

After Nam Gi-seok's mysterious death, Nam Gi-jun emerges from seclusion on a mission to find the perpetrator — no matter the cost.

Still image for Mercy for None season 1 episode 2: Episode 2

2. Episode 2

6.8

After tracking down Gi-seok's hit, Gi-jun discovers the scheme's origin — forcing him to enforce a rule he established more than a decade ago.

Still image for Mercy for None season 1 episode 3: Episode 3

3. Episode 3

7.5

Despite his father's precautions, Gu Jun-mo underestimates the threat he faces. Frustrated and desperate, he decides to handle Gi-jun himself.

Still image for Mercy for None season 1 episode 4: Episode 4

4. Episode 4

7.5

Desperate to save his son, Chairman Gu digs deeper into Gi-seok's hit. After Jun-mo attacks his friends, Gi-jun goes head-to-head with Jun-mo's army.

Still image for Mercy for None season 1 episode 5: Episode 5

5. Episode 5

7.8

Gi-jun quickly learns that his problems don't end with Jun-mo. A gang war breaks out after Chairman Lee suspects the real architect behind recent events.

Still image for Mercy for None season 1 episode 6: Episode 6

6. Episode 6

7.0

Cha Yeong-do sets his plan in motion. As Lee Geum-son seizes power, Gi-jun faces betrayal, danger, and a race to uncover the truth behind it all.

Still image for Mercy for None season 1 episode 7: Episode 7

7. Episode 7

7.9

With all his obstacles cleared, Geum-son puts his endgame into play. Will Gi-jun succeed in stopping him, or go down trying?

Cast

Photo of So Ji-sub

So Ji-sub

Nam Gi-jun

Photo of Huh Joon-ho

Huh Joon-ho

Lee Joo-woon

Photo of Gong Myoung

Gong Myoung

Gu Jun-mo

Photo of Choo Young-woo

Choo Young-woo

Lee Geum-son

Photo of An Kil-kang

An Kil-kang

Koo Bong-san

Photo of Cho Han-cheul

Cho Han-cheul

Choi Seong-chul

Photo of Lee Jun-hyuk

Lee Jun-hyuk

Nam Gi-seok

Photo of Cha Seung-won

Cha Seung-won

Cha Young-do

Photo of Lee Beom-soo

Lee Beom-soo

Sim Seong-won

More Like This

Reviews

M

MovieGuys

8/10

I'm actually quite surprised this series was produced by Netflix. Its certainly not the standard fare, I've come to expect from them.

"Mercy for None" is your typical, gritty, South Korean organised crime drama, on steroids. This is wall to wall unrelenting action, with a seemingly endless stream of well choreographed fights, delivered in bloody style, by a key character, who feels unstoppable.

Like many Korean series, it is intelligently rendered, with a moderately complex back story, replete with interesting characters, with often surprisingly subtle, at at times fatalistic, motives. This isn't just brute force and brawn, although there is plenty of that, on offer.

Where this series falls down a little, is the extremity of violence, that plays out, on the screen. It can be wincingly visceral and could, I feel, have been dialled down, a couple of notches.

In summary, for the most part this is a cracker of a series for those of us who like gritty street crime tales, with a bleak, uncompromising heart. Very definitely worth a look.

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