Every day, watching his mother sweat while doing housework stirs strange emotions in her son. The urge to touch her damp skin grows stronger each day, and every night he fantasizes about a sexual relationship with her, indulging in masturbation. Eventually, his desire becomes uncontrollable, driving him to cross the forbidden boundary between parent and child. Though shocked and flustered by his actions, the mother gradually begins to awaken to maternal instincts as she responds to her adorable son's passionate advances.