Infernal Affairs II
within this prequel into Mou gaan dou (2002), Chan Wing Yan has only come to be an undercover cop at the triads while Lau Kin Ming joins the police . Both triads as well as law enforcement find a enemy at a rival crime boss.
Director: Alan Mak, Andrew Lau, Wai-Keung Lau
Actors: Anthony Wong, Carina Lau, Edison Chen, Eric Tsang, Francis Ng, Hu Jun, Shawn Yue