A young woman begins murdering all those responsible for her ailing father's condition. Because the girl is so outwardly sweet and innocent, the detective looking into the deaths does not suspect her.

As her husband Eiichi becomes more entangled in his life as businessman, Naoko looks for ways to expand her own life even as her husband's life shrinks in scope and intimacy. She finds new interests, new love, and a greater sense of her place in the world.

A young prosecutor named Takao falls in love with Yoriko, only to discover that her husband is the target of his investigation into a major corruption scandal. Torn between professional duty and their forbidden affair, the couple finds themselves trapped by societal expectations and legal consequences.

Based on the novel by Yoshie Hotta