Junko and Kohei were each other's first relationship, and got married. A white apartment, a white blouse, and white underwear; their relationship was pure. But then Junko put on conspicuous lingerie and a black dress, and went to attend a class reunion. Suspicious, Kohei followed behind her until she disappeared into a hotel with Okada, a former junior high school classmate. Kohei had learned from his mother to obsessively despise `filth,' and vowed to make Junko utterly filthy. So, he presented his own wife to a gang rape club...

　　純子和公平是彼此的初戀情人及最後成為夫婦。一棟白色公寓、一件白色女襯衫和白色內衣，一切都代表著他們的關係是純淨的。但某一次純子穿著了一件貼身內衣褲和連身裙去出席同學聚會，公平因而感到可疑，於是便跟蹤著她，直至她與一位初中同學岡田進入了一家旅館。公平亦因為受到母親的影響而特別憎恨不潔的事物，於是便為了報復而把自己的妻子獻給輪姦俱樂部玩弄…