Rika, who is married to an elite husband, is often pressured by her mother-in-law, Yone, who is also her husband's mother. "If your child fails the entrance exam, it will be your fault as a vocational school graduate," she is told. Rika is under so much pressure that her mind is filled with thoughts of the entrance exam. One day, the doorbell rings and when she answers, she finds a salesman with an eerie smile standing there. "Isn't there something that's bothering you? Like...about your child? My product will help you," Rika is lured in by his sweet words and gradually becomes brainwashed...