Synopsis: In this riveting prequel to Infernal Affairs, Lau and Chan (characters played by Leonardo Di Caprio and Matt Damon in The Departed) become moles on opposite sides of a war between the Hong Kong police force and the triad mob. As they perilously climb the ranks in their respective worlds, Lau and Chan enmesh themselves in a web of conflicting loyalties and deadly deceptions. Featuring the writer-director team from the original, Infernal Affairs 2 retains the gritty complexity that earned this action-thriller trilogy international acclaim.