供职于某大公司的OL高见泽花土（加山麗子 饰）温柔美丽，她与已婚的上司三原修三（宇南山宏 饰）长期保持着不伦关系。每个星期五的晚上，是他们例行约会和温存的日子。花土明知对方无法给她幸福，却沉沦其中无法自拔。又到一个星期五，三原因为要给女儿庆生，因此撇下花土回到自己家中。晚餐过后，三原的妻子幸子（岡本麗 饰）接到一通神秘电话，对方将三原有外遇的秘密告诉了她。虽然幸子不事声张，但三原心中忐忑，决定结束这段不伦之恋；而心中遭受巨大打击的幸子，也开始放纵压抑许久的情绪。原本便已复杂的情爱关系，却又有人搅入其中…… 本片根据阿部牧郎原作改编。

Akemi is a laboratory technician who spends her evenings spying on her gangster neighbor as he makes love to his stripper girlfriend. The objects of Akemi's voyeuristic attentions learn of her interests and suggest that she would make a fine prostitute. Surprisingly Akemi agrees and channels her interests into this more lucrative occupation.

When Muraki, a porn magazine editor, watches a blue film depicting a gang rape in a school, he becomes obsessed with the lead actress. Quite by chance, whilst looking to reserve a location for a shoot, he happens to encounter her at a love hotel where she works as a receptionist. Her name is Nami and she reluctantly agrees to speak with him, and confesses that it was her in the film. Then, Muraki tells Nami that he wants her to model for him.