Toru Matoba is a bartender at a singles bar in Tokyo. Besides his regular duties, he is a pimp and a gigolo, constantly seducing and using the women customers in the bar. Kazuko Uehara and her younger sister, Hatsue, are two of his victims; when he finds himself in trouble, Toru forces Kazuko to become a prostitute. A group of professional prostitute dealers resent Toru's efforts and give him a beating that sends him to the hospital. Meanwhile, Kazuko is arrested for prostitution and discovers that Toru denies any knowledge of her and that her parents have disowned her. The younger sister, Hatsue, seeks revenge and murders Toru.