Quick Plot Summary: Released in 1990, Happy Ghost IV is a Comedy, Fantasy, Horror film directed by Clifton Ko Chi-Sum, written by Joe Ma Wai-Ho. The narrative brings laughter through sharp writing and comedic timing, providing amusement while touching on deeper societal themes. As part of the Happy Ghost Collection, it provides a scannable look at the movie's central conflict involving Raymond Wong Pak-Ming as Hong Sam-Kwai / Chu Kam-Chun.