A forbidden love story between Fumiko, a fifty-year-old mother who is treated like a servant by her husband, and her son, who feels pity for such a mother. Her son's marriage is decided, and Fumiko clutches her son's underwear and masturbates to distract her lonely feelings. On the very day her son leaves home to live with her fiancée, Fumiko can't control the thoughts she has in her heart and turns them into her actions. Her beloved child...
