- HD 1080
- Runtime: 93m.
- Status: Released
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- Languages: cn
- Country: Hong Kong, Singapore
- Director: Kelvin Tong
- Stars: Shawn Yue Man-Lok, Ekin Cheng Yee-Kin, Stephanie Che Yuen-Yuen, Fiona Xie, Renee Lee
- Production_studio: Dream Movie Entertainment Ltd., Boku Films, Dream Entertainment
- The Rule Number One is featured in the top rankings of 2008
- #70 in Top Action Movies of 2008
- #12 in Top Horror Movies of 2008
Rookie Sergeant Lee is injured in a shoot-out and is assigned to the dubious-sounding Miscellaneous Affairs Department (MAD). There, he is paired up with Inspector Wong, a jaded and alcoholic veteran who explains that MAD’s role is to answer supernatural calls. Wong explains MAD’s rule number one - there are no ghosts. For every seemingly inexplicable phenomenon, there is a corresponding scientific and rational explanation.