In order to settle a business dispute, a mob leader murders one of his own teenage sons. The surviving son vows to avenge his brother’s death, and organizes his own gang of teenage killers to destroy his father’s organization.

The story follows a trio of Japanese youths of Chinese descent who escape their semi-rural upbringing and relocate to Shinjuku, Tokyo, where they befriend a troubled Shanghai prostitute and fall foul of a local crime syndicate. Like many of Miike’s works, the film examines the underbelly of respectable Japanese society and the problems of assimilation faced by non-ethnically Japanese people in Japan.