Possessed is a 1983 Hong Kong film directed by David Lai. It is followed by Possessed II in 1984.
Plot[]
An insane man is shot dead by two cops Kung and Hsiao after he refused to listen to them and stabbed a woman dead. After that, the two cops always meet strange things and Hsiao's girl friend is also haunted too. In order to reduce the fear, the cops employ a Taoist to find out the problem. After several enchantments, the Taoist discovers the truth: As Hsiao's father was involved in some corruption that led to a death. Now the spirit of the victim has returned from hell for revenge.