A young cop finds his loyalties divided after befriending a notorious criminal while undercover in prison.


Sung-hyun Byun
9 wins & 21 nominations. See more awards »





Credited cast:
Kyung-gu Sol ... Han Jae-ho
Si-wan Yim ... Jo Hyun-soo
Lee Kyung-young ... Go Byeong-cheol (as Kyoung-Young Lee)
Hye-jin Jeon ... Chun In-sook
Jason Nelson ... Russian Gangster
Byung Mo Choi Byung Mo Choi ... Captain Choi
Tim Rixx Tim Rixx ... Russian Gangster
Rest of cast listed alphabetically:
Lee Dong-yong ... Cold storage manager
Andreas Fronk ... Russian Mafia
Alexis v Hall Alexis v Hall ... Host (as Alexis Hall)
Hong-In Hong-In ... Banggae
Joon-ho Hu Joon-ho Hu ... Kim Sung-han
Jang In-sub Jang In-sub ... Min-cheol
Hee-won Kim ... Go Byeong-gap (as Hie-won Kim)
Seong-oh Kim ... Jeong Seung-pil (as Sung-oh Kim)


Jae-ho has established his own rules and put all of his fellow inmates under his control in a penitentiary facility. After he meets a newly imprisoned inmate, Hyeon-soo who won't give in to anyone under any circumstances, Jae-ho pursues his new ambition to become the boss of his organized crime group once he is released from the prison. Written by subratjain1

Plot Summary | Add Synopsis


Action | Crime | Drama


Not Rated | See all certifications »

Parents Guide:

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Alternate Versions

The Indian version is dubbed in English and has been certified U/A by the Indian Censor Board. It runs at 114 minutes 20 seconds, making it 3 minutes shorter than the Korean original. The film has been slightly cut. See more »

User Reviews

Story was soo good & different,Not accept movie will be this much great
16 April 2020 | by jsaleem-89705See all my reviews

An Expecational Korean Action,Suspense,Drama movie story was soo good,Engaging & Deep ...Two tottaly different people how attached with each other ,betryal then trust then again Betryal & continue,,,,,Direction,Script was soo good,Story was very different & Acting was soild by all cast especially Gangster guy & Siwan

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Official Sites:

Official site [Japan]


South Korea


Korean | Russian

Release Date:

18 May 2017 (South Korea) See more »

Also Known As:

The Merciless See more »


Box Office

Cumulative Worldwide Gross:

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Company Credits

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Technical Specs




Aspect Ratio:

2.35 : 1
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