I just thought "what if George V Higgins wrote urban fantasy" and now I've got the tagline for an Unknown Armies game that no one will understand because who still reads George V Higgins?
(And if you like a healthy dose of cynicism in your urban fantasy RPG then try Unknown Armies - but not the recent "updated" edition, which strips most of that out for some reason.)
(But if you like crime fiction, cynicism, and some of the best hardboiled dialogue ever written you should definitely try "The Friends of Eddie Coyle".)