Bittersweet Life

Violent Korean crime thriller. Hotel manager Sunwoo (Lee Byung-hun) also happens to be the right-hand man of underworld crime boss Kang (Kim Yeong-cheol). When Kang begins to suspect his young girlfriend is being unfaithful, he orders Sunwoo to deal with her, but when Sunwoo finds her in bed with another man, he uncharacteristically grants them mercy.

Stung at Sunwoo's betrayal, Kang orders his henchmen to hunt Sunwoo down and kill him, but Sunwoo is not ready to give up without a violent fight.