One rainy night, a speeding black sedan clips his car. Enraged, Jang gets out to curse the driver—only to be stabbed three times in the chest by a pale, smiling stranger. The "Devil" (Kim Sung-kyu) is a serial killer who chose the wrong monster to hunt.
When Jung learns that the tough-guy gangster Jang was stabbed, he smells opportunity. He doesn’t want to save Jang. He wants to use him as bait. “You catch the killer,” Jung tells Jang. “I catch you. That’s the deal.” The film never gives the killer a real name. He is referred to only by a license plate number and a vague description. He is a handsome, quiet suburban father who preys on the weak. He has no motive, no trauma, no grand philosophy—only a void.
The film asks a haunting question: Is a society safe if it requires a monster to catch a demon? In the final frame, the gangster goes to prison. The cop gets a promotion. The Devil gets a life sentence. On paper, the system worked. the gangster the cop the devil
Because the gangster realizes that killing the Devil would be mercy. Handing him to the cop—letting the state parade him, convict him, and lock him in a cell where he can never hurt anyone again—is the worse punishment. It is the one moment a criminal respects the law, not out of fear, but out of cruelty. The Real-World Echo While fictional, The Gangster, The Cop, The Devil taps into a grim reality. In several Latin American and Asian nations, authorities have admitted to off-the-books alliances with former cartel members to capture even more violent terrorists or rival assassins. It’s the “enemy of my enemy” paradox: when the state admits it cannot protect its citizens, it sometimes deputizes the very people it is trying to imprison.
Seoul / Los Angeles – In the annals of crime fiction, the lines are drawn clearly: the gangster breaks the law, the cop enforces it, and the devil… well, the devil takes the souls of both. But in the 2019 South Korean action-thriller The Gangster, The Cop, The Devil (and the real-world tensions it reflects), those lines don’t just blur—they explode. One rainy night, a speeding black sedan clips his car
What happens when the predator becomes the prey? What happens when a mob boss needs a cop to stay alive? You get an unholy trinity where trust is a weapon, revenge is the currency, and justice is just a word for whoever is left standing. Meet Jang Dong-soo (Don Lee, also known as Ma Dong-seok). He is not your suave, suited Godfather. He is a mountain of a man who runs a small crime ring in the provincial city of Cheonan. He solves disputes with a single backhand and prefers brute force over bureaucracy.
But the last shot is of Jang Dong-soo in his cell, doing push-ups, smiling. He knows the cop owes him a favor. He knows his reputation is untouchable—he survived the Devil. And he knows that outside, the inspector is already looking at the next case, realizing that without his criminal partner, he is just a man with a badge. When Jung learns that the tough-guy gangster Jang
But here is the genius: The gangster gets there first. He beats the Devil nearly to death with his bare hands. Then he stops. He looks at the arriving cop. He drags the killer to the police car and shoves him into the back seat.