Bumbling private detective Chan Tam (Aaron Kwok) is enlisted by police pal Fung Chak (Liu Kai Chi) to help in the investigation of a serial murder case. The victims--a middle-aged man killed at home, a dead woman found in the trash dump, and a teenage girl slain in the park--were all killed in grisly manners, but they didn't seem related to one another. With no clue t...