Tetsuo Tosu, a common salaryman, learns that his daughter, Reika, has been violently assaulted by her lover, Matori Nobuto. Tetsuo investigates Matori's attempt to extort money from Reika's affluent grandparents and discovers that he is a part of a crime organization with a history of murdering his prior lovers. Tetsuo, filled with hatred and terror at the notion of Reika being in danger, kills Nobuto and successfully disposes of the body with the aid of his wife, Kasen. As members of the syndicate begin to investigate Nobuto's abrupt absence, Tetsuo and Kasen must work together to secure their daughter's safety and keep her from being embroiled in the situation any further.