This is a ghost story, but it is also a furious drama about Korean schools in the 1990s. Teachers slap, grope and humiliate students, rank them like cattle and pit best friends against each other. The ghost almost feels like the most sympathetic person in the building.
The atmosphere is excellent. Long, empty corridors, a haunted art storeroom and a cold blue colour palette give the school a quietly unsettling feel. The low budget shows at times, and the camera work and effects look dated, but the mood holds up.
The young cast, including Choi Kang-hee, Kim Gyu-ri and Park Jin-hee in early roles, are natural and convincing. The mystery of which student is really the dead girl unfolds through old yearbooks, which is a simple but clever device.
If you expect modern jump scares, you will be disappointed. This is a slow, sad and angry film that uses horror to talk about growing up under pressure. As a piece of horror history, it is essential.





