Despite her disabled leg, the Ph.D. student Jae-yeon is a brilliant researcher with a rare ability to communicate with nature. Having been hurt by her hypocrite colleague and lover, she turns her back to the world and goes deep into the forest to live alone in a glass garden.
Hwang Dae-woo is an elite with zero experience on having a romantic relationship. One day, he meets a lovely, sophisticated woman and falls in love with her. Then, he encounters a terrifying secret about her.
Detective Kang gets involved with a drug business to pay the medical bill of his comatose wife. Min-woo confesses to Kang that he has killed his wife, who knows his past. Slowly, Kang realizes his wife's incident and Min-woo are connected.
At a prep school, a secret horror begins to unfold as the students begin to die.
