Juri, a married woman, lives alone with her college-aged son while her husband is away on a long business trip. Recently, she has been worried that her son's room has become a hangout spot for his friends as he is about to start job hunting. One day, as she is about to take a bath as usual, she bumps into her son's friend, both naked, masturbating in the bathtub. From that day on, her everyday life is gone. She is used as a sexual outlet by her son's friends and gradually loses her sense of reason. As her body is played with by these young men, this married woman is torn between pleasure and guilt!