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.

Lau Kin Ming

Chan Wing Yan

Wong Chi Shing

Hon Sam

Lee Sum Yee

Mary

May

Silly Keung

Inspector B

Young Chan Wing Yan

Young Lau Kin Ming

Senior Inspector Cheung

Officer Leung

Del Piero

Suspect

Stereo Shop Owner

Cadet School Principal Yip

Paul

Elephant

Double 8
Solid Hong Kong action-thriller with good performances and fine direction. I do think The Departed did better with connecting the plot and character development (particularly between the undercover cop and psychiatrist). Also thought The Departed was more suspenseful. But that said, Infernal Affairs is a fine film. **3.75/5**
December 12, 2002

Lau Kin Ming

Chan Wing Yan

Wong Chi Shing

Hon Sam

Lee Sum Yee

Mary

May

Silly Keung

Inspector B

Young Chan Wing Yan

Young Lau Kin Ming

Senior Inspector Cheung

Officer Leung

Del Piero

Suspect

Stereo Shop Owner

Cadet School Principal Yip

Paul

Elephant

Double 8
Solid Hong Kong action-thriller with good performances and fine direction. I do think The Departed did better with connecting the plot and character development (particularly between the undercover cop and psychiatrist). Also thought The Departed was more suspenseful. But that said, Infernal Affairs is a fine film. **3.75/5**
