Tae-soo tries to steal from a gang. The gang catches Tae-soo's brother Tae-jin instead. The incident causes the brothers to separate. Tae-soo becomes a mob fixer and an assassin. Tae-jin becomes a police detective. When a call brings the brothers together, they get ready for brotherly bonding, but Tae-jin is killed. Tae-soo decides to get revenge on his brother's killer.