短短数日内，三起“微笑杀人案”震动全城。调查过程中，青年警探、警局“活宝”王不二语出惊人：这是一起连环谋杀案！遂与搭档黄飞红开始一段惊悚刺激，同时又状况不断的“缉凶”之旅。
Wen Zhang
Wang Buer
Jet Li
Huang Feihong
Liu Shishi
Liu Jinshui
Michelle Chen Yan-Hsi
Angela
Liu Yan
Dai Yiyi
Stephen Fung
Liu Jun
Bruce Leung Siu-Lung
Liu Xing
Kevin Cheng Ka-Wing
Tian Ci
Michael Tse Tin-Wah
Yao Yiwei
Tian Liang
Zheng Jun
Collin Chou
Chen Hu
Ma Yili
Police Commissioner Ma
Tong Dawei
Wang Feng
Huang Xiaoming
Interpol Officer
