Worried about a child abuse case, social worker Li Shu Fen (Rainie Yang) visits the home of Lin Mei Hua (Francesca Kao), who has locked up her child in a room that's covered in talismanic writing. Lin Mei Hua tries to explain that they are trying to ward off some evil spirt.
Li Shu Fen gets distracted from the investigation by her own discovery of her teenage daughter Ya Ting getting pregnant. After a huge argument, Ya Ting runs away from school and winds up missing. Li Shu Fen enlists the help of local rangers and ex-boyfriend to search for her daughter.