Wife Nozomi lives alone with her son while her husband is away for work. One day, her son's friend stays over to study and catches her masturbating. Tempted by him, she gives in and sleeps with him. Soon after, the boy's friends begin secretly seducing Nozomi behind her son's back, bringing her to climax and having sex with her one after another. Lost in pleasures long forgotten, Nozomi gradually awakens to new, uncontrollable desires.