Yukiko is a young wife who is feeling lonely and unsatisfied. Her husband Kouichi won't satisfy her needs, and actually they sleep in separate beds. To increase her frustration, Yukiko finds some pictures on her behalf husband's cellphone - images of an unfamiliar naked woman also one evening she sees her two children - who are not related by blood - together during sex.

Yukiko spends her time in your own home trying to satisfy her needs by herself. Until 1 day the father of her husband comes to visit and sees her within a compromising situation. Then things in their own family will change...