Is The Gangster The Cop The Devil Based On True Story Instant

A key part of the true story involves a pimp—not necessarily a "gang boss" in the traditional cinematic sense—who realized his employees were disappearing. This individual began his own investigation and eventually collaborated with the police to lure and capture Yoo in 2004. The Legal Paradox:

In the early 2000s, Seoul’s underground was ruled by organized crime factions. One particular mob boss, whose identity has been protected in official records (though local journalists nicknamed him "Mr. Kim"), was driving home late one night. Like in the film, he was rear-ended by another vehicle at a traffic stop. is the gangster the cop the devil based on true story

According to the filmmakers, the screenplay is loosely based on true crime, though specific details about the exact case were not officially provided. The film's opening text states that it is "based on true events," framing the story as a dramatization of actual murders from around 2005. Director Lee Won-tae used real-life events as a foundation, while also building out the fictional characters and central premise. A key part of the true story involves

To understand the film’s roots, you have to look at a real person: . He is one of South Korea’s most notorious serial killers, active between September 2003 and July 2004. Known as the "Raincoat Killer" (due to demanding his victims wear a raincoat during the murders) or the "Happy Day" killer (after a message he carved on a victim), Yoo Young-chul confessed to murdering 20 people—mostly wealthy elderly people and female masseuses. One particular mob boss, whose identity has been

| Element | In The Gangster, The Cop, The Devil | In Real Life (Yoo Young-chul / Kim Tae-chon) | | :--- | :--- | :--- | | | Serial killer stabs mob boss; boss survives. | Serial killer attacks mob boss with crowbar; boss wins the fight. | | The Alliance | Gangster and Cop form an official, secret pact to catch the killer. | No alliance. The police were already investigating. The gangster hunted the killer alone. | | The Motivation | Cop wants justice; Gangster wants revenge for his wounded pride. | Gangster acted purely out of pride and territory protection. | | The Ending | The cop arrests the gangster after the killer is caught. | The gangster was already a wanted criminal. Both the killer and the gangster went to prison separately. | | The Killer | A young, handsome, smiling psychopath who kills randomly. | A middle-aged, awkward construction worker with specific hatred for rich people and sex workers. | | The Daughter | The killer targets the gangster’s daughter. | No such relationship existed. Yoo targeted strangers. |

Here is the detailed breakdown of the true story that inspired the film, and where Hollywood-style fiction takes over.