A sickly girl Ju-ran transfers to a new sanitorium boarding school to regain health. But she discovers that students are disappearing and notices abnormal changes happening to her body. She suspects the school for what's happening and tries to discover what secret is hidden.
This movie contains 14 potentially triggering events.
no actual police here, but this takes place under the japanese occupation of korea. we see a lot of japanese military ppl towards the end, they're not seen as good people
one of the characters are put in a tank that's being slowly filled up with water. another character had a bunch of girls embroider flowers into their skin
they're given meds through an iv. there are also scenes where they embroider, close to the end of the movie they embroider flowers onto one of the characters' skin. the character ends up dying