Synopsis

Social worker Shu-Fen goes in search of her missing teenage daughter Ya-Ting after her sudden disappearance. She is told that her daughter was last seen in the company of a girl in red, leading her to begin to unravel the mystery behind the girl’s disappearance. She meets the mysterious Mei-hua, who imprisons her own daughter inside her house covered with papers with spells written all over, and finds the missing and pregnant Yi-chun in an abandoned hospital. Together, the trio return to the Red Forest to rescue Ya-ting, who disappeared in the first Tag-Along film.