Miki, a mother troubled by her son Yoichi's misbehavior, realizes that the cause of his wildness lies within herself, but she can't bring herself to say it. At that time, she witnesses Yoichi trying to force himself on a childhood friend. Miki, who has witnessed her son's unplaceable desire, decides that if he's going to bother others, she'll take care of his sexual urges. The two, who have crossed the line, continue to greedily indulge in pleasure, covered in sweat…
