A mother in her fifties is always worried about her introverted, reclusive son. One day, her son says he's going out for a change. While her son is away, her carnal desires grow and she masturbates. Her son, who has an abnormal love for his mother, secretly films her masturbating. The mother is surprised by her son's actions, but her twisted maternal instincts lead her to accept his actions, expose herself naked, and lead him to intercourse.