Yoo-ri, a seemingly model student from a well-to do family suddenly commits suicide. Detectives suspect suicide, but her mother Hye-young believes that Yoo-ri’s classmate Ye-na and homeroom teacher Gi-beom were the killers. As the investigation dives into the lives of these people, it spirals out of control due to conflicting statements between the three, but detectives find out that Hye-young caused cracks in Yoo-ri’s heart. Deeply believing that she was doing everything possible for her child out of love, can Hye-young uncover the truth behind her daughter’s death?

Toxic Parents

Daechi, the place with the most enthusiasm for academia in Korea. 'Yunim' who once dreamed of becoming a novelist lives out her life as a Korean instructor in Daechi. However, on the day the midterm exam is about to end on the middle school where Yunim is in charge of, the teacher of that school comes visiting Yunim. The schoolteacher 'Kihaeng' is Yunim's ex-boyfriend 10 years ago. Now, the two becomes the topic of gossip among the parents of Daechi.