A woman is found dead and three other women, incarcerated at a psychiatric hospital. The body belonged to the wife of the hospital President, Dr. Kiriyama who has gone missing since the day of the murder. As Detective Hayashida and his partner start to investigate the case and interview the women linked to the victim, they soon find themselves tangled in a web of the women’s lies and deceptions.

Natsunako (30) has given up on her dream of becoming a painter and has returned to her parents' home. When the washing machine breaks down, she goes to a laundromat and runs into Toru, a former classmate from junior high school. The two had never had any contact, but something gradually begins to change in Natsunako as a result of them meeting.