Kanae is a married woman who lives with her son while her husband is away on a business trip. One day, her son's friend comes to stay the night and is aroused by the sensuality of the defenseless Kanae. When Kanae pretends to be sick and is left alone with her friend, she is raped by him. Even though she was raped, her body responds to a long-forgotten pleasure, and she becomes intoxicated by the climax that comes. Her friends' desires run wild, and they caress her right next to her son, and she soon becomes immersed in their affairs.