Sharon is an outstanding psychiatrist, and has a daughter named Jenny.
Her patients are mostly wealthy people and public figures. Sharon wants Jenny to marry a public figure Mr. Lin. However, Jenny does not like him at all. Sharon forces Jenny to attend a banquet but she embraces all guests in acting terribly. She stands on the banquet table and piss. It embarrasses Sharon and affects her clinic business as everybody knows she has a mentally ill daughter.
At the same time, Sharon has vision of spiritual on and off. One night, she saw Jenny hurt herself badly. Desperately, Sharon turns to an exorcist priest for help. The priest affirms that Jenny has been demon possessed. As a psychiatrist, Sharon never believes in any theories that are not scientifically proven. Jenny's condition is getting worse, Sharon need to choose between science and religious belief.