A mother goes in search of her missing teenage daughter after her sudden disappearance. She is told that her daughter was last seen in the company of a girl in red, leading the mother to attempt to unravel the mystery behind the girl.
When social worker Shu-fen discovers that her pregnant teenage daughter Ya-ting has disappeared, her search for Ya-ting ends her with many horrifying mysteries… Meeting the mysterious Mei-hua who imprisons her own daughter inside her house covered with papers written with spells and encountering the missing and pregnant Yi-chun in an abandoned hospital, the trio returns to the Red Forest to rescue Ya-ting and Shu-fen finally realizes that the deepest fear arises from love…
