Yukari lives with her remarried husband and his son, Yoshio. Though her relationship with her husband lacks warmth, she finds herself drawn to the affection she receives from Yoshio, who caresses her tenderly beside her sleeping husband. Following Yoshio's commands, she begins acting boldly in front of her husband, awakening new desires within her. While her husband is away on business, Yoshio brings his friends over and they take turns using her throughout the night, igniting a feverish response in her body as she becomes completely addicted to their relentless pleasure.