The night approaches again.

The policeman Mitsuru Tsuchiya (played by Toshiyuki Nagashima), who infiltrated the inside of the gangster Ikeshima Gumi, was killed by the organization one night, and Tsuchiya's wife Nami (played by Yui Natsukawa) was heartbroken, and shortly after the funeral, she was raped by the gangsters of the Ikeshima group. In despair, Nami committed suicide by cutting her wrists, and after being rescued, she decided to assassinate the president of the Ikejima group, Masanobu Ikeshima (played by Nong Terada), to avenge her husband. 　　The first assassination attempt was stopped by Tetsuro Muraki (Shinhachi Nezu), a cadre of the Ikeshima group, and then Nami approached Ikeshima as a drinking girl, and her beauty caused Ikeshima to let his guard down, but the second assassination failed again. Ikeshima's subordinate Shibata (played by Shiina Kichihei) brutally tortures Nami, and Muraki comes to the rescue at a critical moment. After suffering setbacks one after another, Namei is willing to fall, and Muraki hopes to save him from the sea of suffering. As they got along, feelings gradually developed between the two. Nami learns Muraki's identity and finally knows the secret behind her husband's murder......