The head of an elite Hong Kong surveillance unit keeps one eye on his rookie apprentice and the other on a notorious criminal he suspects of masterminding a recent jewel heist in this tense thriller from filmmaking duo Johnnie To and Nai-Hoi Yau. Of course, the criminal knows all along he's being watched. But that doesn't stop him from trying to pull off the biggest score of his career.
as Sergeant Wong Man-Chin / Dog Head
as Chan Chong-Shan / Hollow Man
as Constable Ho Ka-Po / Piggy
as Ng Tung / Fatman
as Madam Fong
as Chief Inspector Chan
as Chan Chong-Shan's Gang Member
as Chan Chong-Shan's Gang Member
as Chan Chong-Shan's Gang Member
as Master's Wife
as Master
as IB Policeman
as Senior Police Officer
as Snakie
as Chan Chong-Shan's Gang Member
as Chan Chong-Shan's Gang Member
as Officer Wo
as Chan Chong-Shan's Gang Member
as Kidnapper
as Cleaning Lady (uncredited)
as IB Policeman (uncredited)
as Jewelry Store Clerk (uncredited)
as Loan Shark (uncredited)
as Man Eating in 7-Eleven (uncredited)
as Sergeant Wong's Subordinate (uncredited)
as Surveillance Unit Operator (uncredited)
