Desc: Vô Gian Đạo 2: Directed by Wai Keung Lau, Alan Mak. With Anthony Chau-Sang Wong, Eric Tsang, Carina Lau, Francis Ng. 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.