Chan Wing Yan, a young police officer, has been sent undercover as a mole in the local mafia. Lau Kin Ming, a young mafia member, infiltrates the police force. Years later, their older counterparts, Chen Wing Yan and Inspector Lau Kin Ming, respectively, race against time to expose the mole within their midst.
- Release Date : 12 December 2002 (Hong Kong)
- Genre : R
- Cats : Crime,drama,mystery,thriller
- Duration : 1hr 41mins
- Director : Wai-Keung Lau