Three years into her marriage, Shizuka, a full-time housewife with a quiet husband Takeshi and an infant, leads a peaceful life. Ken, Takeshi's classmate and a businessman, visits them. Captivated by the charming presence of the active Ken, Shizuka reconnects with her inner femininity through their conversations. Gradually, Shizuka's casual attire becomes more flamboyant. The impoverished housewife steadily falls for a wealthy man—knowing it's wrong but still slipping out of the house where her husband and child await, becoming an adulterous wife who engages in unprotected, endless French kissing and intercourse…
