
About
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.
Cast

Andy Lau
Lau Kin-Ming

Tony Leung Chiu-Wai
Chan Wing-Yan

Anthony Wong
Wong Chi-Shing

Eric Tsang
Hon Sam

Kelly Chen
Lee Sum-Yee

Sammi Cheng
Mary

Edison Chen
Lau Kin-Ming (young)

Shawn Yue
Chan Wing-Yan (young)

Chapman To
"Silly" Keung
Keywords
Photos

Lists
#156 on 500 Essential Cult Movies Jennifer Eiss
#30 on The 100 Best Films Of World Cinema Empire
#254 on The 21st Century Most Acclaimed Films They Shoot Pictures, Don't They?
Edgar Wright's 1000 favorite movies Edgar Wright