The Gangster, The Cop, The Devil Apr 2026

Dong-soo provides the manpower and underworld intel. Intel: Tae-suk provides police data and forensic tools.

After a high-speed chase through a crowded district, Dong-soo captures K just seconds before the police arrive. He takes the killer to a secluded warehouse to torture him. Just as Dong-soo prepares the killing blow, Tae-suk crashes his car into the warehouse. He knocks out the mob boss and arrests K, choosing the law over vengeance. The Resolution 💡

They find K’s weapon—a specific type of knife—and track his stolen vehicle. The Gangster, The Cop, The Devil

K is sentenced to death and sent to prison. In the final scene, Dong-soo is sent to the same prison. As he enters the showers where K is hiding, Dong-soo smiles and says, "I told you there are three men who will risk their lives to catch you." If you'd like to dive deeper into this world: of the characters' moral gray areas Comparisons to the real-life "Cheonan serial killer" case

The investigation leads them through the gritty neon streets of Cheonan. The gangster’s henchmen and the cop’s unit play a dangerous game of cat-and-mouse with K. Dong-soo provides the manpower and underworld intel

Jang Dong-soo, a powerful mob boss, is driving home alone on a rainy night. A stranger intentionally rear-ends his car. When Dong-soo steps out, the stranger—a nameless serial killer known as "K"—stabs him repeatedly. Dong-soo fights back with terrifying ferocity, wounding the killer before K escapes. Dong-soo survives, but his reputation as an untouchable kingpin is shattered. The Uneasy Alliance

As they close in, K realizes he is being hunted by both sides and begins to enjoy the challenge, intentionally leaving clues to bait his pursuers. The Climax He takes the killer to a secluded warehouse to torture him

Jung Tae-suk is a hot-headed detective convinced that a string of recent "accidental" murders are the work of a single serial killer. His superiors ignore him, but he realizes Dong-soo is the only living witness to the murderer. The two men strike a deal: