the MERCILESS

Jae-ho, who only tries to be the number one in his crime organization, meets an ambitious newbie, Hyun-su in prison. Jae-ho has never trusted anyone in his life, but after Hyun-su saves him from a sudden attack, they become loyal to each other and promise to work together. After release, they team up and try to take over the crime ring, but their ulterior motives slowly surface. Their relationship is shaken when they begin to discover what lies beneath their trust.