Question: What territory does Chan Kwong-wing and Infernal Affairs have in common?
Sentence (from "Infernal Affairs"): The English title is a word play, combining the law enforcement term "internal affairs" – typically the division of any law enforcement agency that would be responsible for (among other things) finding a mole – with the adjective "infernal", meant in this case as a reference not to fires or infernos in general, but specifically to the inferno of Hell ("Inferno" being the Italian word for "Hell").
Relevant evidence: No