Sasamoto Sawa is a married housewife, just like Takigawa Rikako, a woman who moves into the neighbourhood with her husband and two children. While her husband is away, Rikako is having many affairs with younger men. But one day, Rikako ends up pulling Sawa into her business when she has to answer the police upon almost being robbed while on a date. Sawa decides to cover up for Rikako and say that the three of them were just meeting up casually. But this incident causes Sawa to meet a certain man with whom she falls in love. And so the two housewives are having affairs while their husbands are not there.