Dozens of students died gruesomely during the last school exams. It started with one of the students being possessed and harming the others. The devil's power threatens their lives.

Edwin promised to his sister on her deathbed to find her son she gave up a long time ago. Edwin's quest brought him to become a substitute teacher in Duri High School, Jakarta, a school for juvenile delinquents. There he must face the most violent students to find his nephew. When he eventually finds the boy, a city-wide riot erupts and Edwin is trapped in the school with the cruel kids out for his blood.