Kumi Taguchi is a model who leaves her boxer boyfriend after he sustains an injury. She meets and quickly marries Hideo, the heir to a corporate empire. Hideo's father, Takehiko, lusts after Kumi. Takehiko sends his son away, ostensibly on a business trip, but actually so that he can be murdered by Takehiko's henchmen. Takehiko seduces Kumi, but is frustrated when she refuses to perform oral sex on him. Angered, Takehiko forces Kumi to undergo surgery in which her clitoris is transferred to her throat, thereby requiring that she engage in oral sex in order to have an orgasm. Hideo, the supposedly murdered son, returns having paid off his assassins. Hideo shoots and kills his father, but Kumi grabs the gun and kills Hideo so that she can inherit the family's fortune
Following her successful prison break, Scorpion begins this third episode in the series hiding out in a brothel. Her prostitute friend tries to keep her identity secret, but the brothel's madam discovers that Scorpion is the ex-girlfriend of the vice officer who killed her lover.
After being used and betrayed by the detective she had fallen in love with, young Matsu is sent to a female prison full of sadistic guards and disobedient prisoners.
After being cruelly set up and deceived by Sugimi, a detective in cohorts with the mob with whom she was whole-heartedly in love, Matsushima’s desire for revenge knows no bounds.
