Three years after losing her husband, widow Shizuko lives a lonely life. One day, she is asked by the president of her real estate company to accompany a client named Shibata for a property viewing. Shizuko kindly and carefully shows him around, hoping to secure the deal, but Shibata pays no attention to the apartment. Instead, he is fixated on Shizuko's big tits and voluptuous back, as well as her big ass. Unable to control his arousal, Shibata suddenly overpowers and attacks her. Despite being raped, Shizuko—who has been enduring loneliness and pent-up desire—finds herself surrendering to the pleasure.