Closed toilets at Eunhee’s former school where she used to be deputy head girl are the place for strange things. Hayeong, Soyeon and other students used this place to hide out. They heard an echo in the bathroom's toilet that made them believe there was something there. Hayeong has evidence that Eunhee is the culprit. Hayeong found a pot of plant material by accident and believes Eunhee suffered from auditory and visual hallucinations. After seeing injured female students all around her school, she believes that Eunhee was the one who called her. --Korean Film Biz Zone
