从学堂毕业的任凯，因一宗连环凶杀案，与刚复职的展哥开始搭档。案子破不了反倒引发连串事故。展哥重遇杀妻儿的街童王桃，被激发的恨意一发不可收拾；任凯大意失枪，误被凶手所获。凶手潜伏在城市之中，危机逐步逼近
Gordon Lam Ka-Tung
Cham Lau
Liu Yase
Wong To
Mason Lee
Will Ren
Hiroyuki Ikeuchi
Akira Yamada
Sammy Sum Chun-Hin
Boss Spark
Fish Liew Chi-Yu
Coco
Hanna Chan
Will's wife
Lam Hoi-yan
Kumer So Wai-Chuen
Grizzly
Hugo Ng Doi-Yung
Chief
Fung Yuk-Cheung
CID
Johnny Hui
Car mechanic
May Leong
Landlady
Peter Chan Bei-Dak
Drug dealer
