Warning! This synopsis contains spoilers On a small island off Hong Kong, a police chief (Corey Yuen) suspects that the rich local inhabitants are engaging in narcotics sales. His investigations with several opera performers uncover a stash of treasure buried in an underground and booby-trapped pagoda, along with a vampire.Mortuary Blues is a screwball horror comedy with the great action director Corey Yuen stepping up for one of his few starring roles. Its a film that demands a certain appreciation for toilet humor and manic nonsense akin to a Wong Jing movie. Director Jeff Lau is in familiar territory after helming The Haunted Cop Shop (1987) and Operation Pink Squad II (1989). This will sit well with his fans. If however, repeatedly grabbing ghost ass and swinging from vines in an underground lair pantless is not your idea of a good time, you may want to sit this one out.Villagers on a small island off of Hong Kong are living rich off of a stash of stolen gold buried by their ancestors and theyre willing to kill to keep it a secret. But thats the least for a visiting opera troupe and a local police chief (Corey Yuen) to worry about. The chief investigates what he believes is a narcotics operation, but with the aid of the opera performers he uncovers the entrance to an underground pagoda filled with lesser vampires. After unwittingly releasing a nasty head vampire while making their escape, they return to retrieve a sacred sword and three coins to battle the vampire with. All they have to do is overcome a series of booby traps and steer clear of more vampires.