Yuji is an university student living with his older brother. When he runs into an old acquaintance on the street, the two begin an affair and Yuji ends up getting drawn into the world of S&M clubs, where men put up elaborate and decadent shows for their customers.

The fourth installment in the Bosozoku film series starring Koichi Iwaki.

A famous businessman's links with organized crime are looked into by the Zero Division of the Tokyo Police, with the investigation being headed by a highly trained, extremely violent and very beautiful female officer. When not having shoot-outs with the crime syndicate thugs trying to kill her, she spends most of her time in her apartment, wearing lingerie and taking showers. A sub-plot involves the businessman's S&M-obsessed daughter.

Tarao’s services are called upon to solve the mysterious death of bride-to-be, Mariko, who was found dead with an eerie mask of a devil.