"The Birth of a Legend". In this prequel to Mou gaan dou (2002), Chan Wing Yan has just become an undercover cop in the triads while Lau Kin Ming joins the police force. Both the triads and the police find an enemy in a rival crime boss.

Movie rating: 7.2 / 10 (20440)

Directed by: Wai-keung Lau - Felix Chong - Alan Mak

Writer credits: Alan Mak - Alan Mak - Felix Chong

Cast: Anthony Wong Chau-Sang - Eric Tsang - Carina Lau - Francis Ng - Edison Chen

AKA: Wu Jian Dao 2, Infernal affairs 2, Infernal Affairs II - Wu jian dao 2, Mou gaan dou II, Infernal Affairs 2

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