Nombre original: 학교기담-오지 않는 아이
Fecha de estreno: 22 de enero de 2021
Película
Tiempo promedio: 112 minutos
Géneros: Terror
Sinopsis: So-Ah works as a teacher at a local school. She was curious about Boo Young-Suk, a student with a sinister aura who is always present on the attendance list but no one calls him by name. The more she tries to get Boo Young-Suk back to school, strange things begin to happen at school.