A fifty-something mother, Chiharu, treated like a servant by her husband, and the taboo love story between her son who pities her. After her son's marriage is decided, Chiharu tries to distract herself from her loneliness by gripping her son's underwear and masturbating. On the very day her son leaves home to live with his fiancée, mother Chiharu can no longer suppress the feelings she has been harboring and takes action. She seduces her beloved child…
