Lee Man-Choi

Iron Monkey teams up with his blind friend Jin to bring underworld agent the Tiger to justice. When Jin's son arrives he soon becomes caught up in the conflict, leading to Jin's death. Jin's son now joins the Iron Monkey to avenge his father's memory, as they launch an attack on the Tiger's lair.

A case of juvenile violence called "Horrible Tortures" shocks the city. The highest sentencing is life in prison. However, one of the most important criminal in the case, Beep, is only sentenced to seven-year imprisonment. The verdict has the other story behind.