A cop suffering from "posterior ulcers" tries to catch a serial killer who seeks out victims with medical problems. One suspect is a man who makes pies from guts, which the cop inadvertantly eats. Eventually the hero cop finds himself tied to an operating table with the killer preparing to deal with his "posterior ulcers"!
| Lighting | Fung Liu | Lighting Technician |
| Camera | Yu Chun | Director of Photography |
| Sound | So Chung-shing | Original Music Composer |
| Sound | Shing Wai-yip | Original Music Composer |
| Directing | Kong Lung | Director |
| Writing | Fong Ming Screenplay Section | Screenplay |