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.
After Hee-jin's younger sister So-jin, who is possessed by a spirit,disappears,the neighbors die one by one and a secret underlying their deaths is revealed.
After Hee-jin's younger sister So-jin, who is possessed by a spirit,disappears,the neighbors die one by one and a secret underlying their deaths is revealed.