The Devil & the Ghostbuster

Two young men are buddies competing for the affection of the same girl. Not much of a contest, as the girl is clear about which one she likes. The guys also get into trouble standing up to the local gangster. But help is at hand when they seek refuge in a haunted house. A friendly lady ghost heals the wounds of one of the guys, and gives him power over the gang boss. But the ghosts' help is curtailed when her other-worldly enemy catches up.
(Source: HKMDb)