Soo

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 gets killed. Tae Soo decides to get revenge on his brother's killer.
(Source: Wikipedia)