Overview
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.
Budget/Revenue
They had $6,400,000 on making this film, and they earned $8,840,000 in total. That means they made profit around $2,440,000.