Enjoyable supernatural thriller about buddy cops (Hacken Lee and Tsui Kam-Kong) investigating cases involving the supernatural. First they have to stop a serial rapist who can leave his body while sleeping to attack women, then Hell's hitmen show up and their trouble really begins. A good performance by Tsui Kam-Kong, who for once isn't broadly overplaying his role. Law Lan appears as the police station janitor and resident expert on the supernatural.