Her husband forces his work-related stress onto his wife, and unable to bear witnessing this any longer, their son gradually transforms his sympathy for his mother into desire. One day, he's caught masturbating with her panties, and from that moment, mother and son are drawn into a chain of sexual encounters. Though their illicit relationship becomes routine, one fateful day they passionately take each other beside their sleeping father—only to be caught in the act. Amidst emotional turmoil, the family's bonds shatter, giving rise to a new, twisted connection.