| Element | In Real Life (2005) | In The Gangster, The Cop, The Devil | | :--- | :--- | :--- | | | A mid-level mob boss, not a charismatic "gentleman gangster" like Ma Dong-seok’s character. He cooperated reluctantly. | A physically heroic, almost likable crime lord (Jang Dong-su) who becomes the protagonist. | | The Cop | A rule-following detective who kept the alliance secret from his superiors. | A borderline corrupt, violent cop (Jung Tae-seok) who hates gangsters obsessively. | | The Alliance | A purely practical, short-term intelligence swap. No buddy-comedy banter. | A dramatic, emotional rivalry that evolves into grudging respect and friendship. | | The Killer | Kang Ho-sung (still alive in prison). He had no particular "style" beyond the traffic accident ruse. | A flashy, cinematic "devil" named "K" who enjoys toying with his victims. | | The Ending | The gangster testified in court (anonymously), and the killer got life imprisonment. | The film features a brutal, rain-soaked final fight where the gangster and cop literally beat the devil to a pulp. |
: The central premise—a mob boss teaming up with a detective—is a dramatized version of how real-life criminal underworld figures sometimes provided tips or "street intelligence" to help police track high-profile serial killers who were bad for business. Key Differences Between Film and Reality is the gangster the cop the devil based on true story
The core premise—a mob boss teaming up with a cop—is where the film leans most heavily into fiction. | Element | In Real Life (2005) |
In the pantheon of modern Korean cinema, few films blend brutal action with moral ambiguity as deftly as Lee Won-tae’s 2019 masterpiece, The Gangster, The Cop, The Devil (Korean title: Akinjeon ). Starring the legendary Ma Dong-seok (also known as Don Lee) as a crime boss and Kim Moo-yul as a rogue detective, the film delivers a visceral cat-and-mouse game where the lines between law enforcement and organized crime vanish completely. | | The Cop | A rule-following detective
The film’s dramatic resolution, involving a specific form of prison-based retribution, differs from the legal reality. The suspected real-life inspiration, Yoo Young-chul, was sentenced to death in 2004 and remains in prison today, as South Korea maintains a moratorium on executions.
The Gangster, the Cop, the Devil is best described as a . It takes the very real fear of 2000s serial killers and the gritty reality of Korean organized crime and weaves them into an original "odd-couple" thriller. It feels real because the cultural backdrop and the vibe of the era are meticulously researched, even if the specific plot is a product of Hollywood-style storytelling.
is loosely based on a true story . Director Lee Won-tae explicitly noted in the film's opening credits that the narrative is rooted in real-life events, specifically inspired by a serial killer who terrorized South Korea around 2005. Real-Life Inspiration
