Keiichi Mano

In downtown Japan, a lonely computer nerd tries to maintain a peaceful existance while being stalked by a gang of deviant homosexuals who want to use him for their brutal S&M activities.

Three teenagers witness the brutal murder of a high school girl by an insane salaryman. The teenagers find themselves united by this event and become friends. Later the teenagers hold a party to take their mind off things. Their party is crashed by a local gang of thugs and one teenager finds his newly found girlfriend being raped. The teenagers deal with the thugs by using extreme violence.