- HD 1080
- Runtime: 88m.
- Status: Released
0
- Languages: cn
- Country: Hong Kong
- Director: Clifton Ko Chi-Sum
- Stars: Raymond Wong Pak-Ming, Pauline Yeung Bo-Ling, Woo Fung, Charlie Cho Cha-Lee, Tommy Wong
- The Happy Ghost IV is featured in the top rankings of 1990
- #96 in Top Comedy Movies of 1990
- #24 in Top Fantasy Movies of 1990
- #42 in Top Horror Movies of 1990
A group of college kids discovers the remains of an evil warlord from an old cave and brings it to their dormitory, which ultimately awakens the warlord's ghost. It is seeking to avenge his killer, who has since reincarnated as Mr. Hong's snobby girlfriend Annie. With Hong and Annie endangered, Hong's reincarnated spirit takes over to save him and Annie, and defeat the demon.