In a penitentiary, Jae-ho has created his own authority and dominates his fellow inmates. His plans for power are disrupted when he meets Hyeon-soo, a stubborn new prisoner who refuses to back down. This encounter sets Jae-ho on a path to become the leader of his criminal organization once he's released.
The Merciless
A rookie officer's world is turned upside down when he forges an unlikely bond with a hardened convict during a stint as an undercover prisoner, forcing him to confront his own moral compass.