I'm deep in allergy hell right now, and for some reason this got me thinking about unreliable narrators (probably due to how unreliable my brain becomes on allergy meds), specifically the good, the bad and the ugly. I happen to really enjoy a narrators who lie (to me and to themselves) in movies (Usual Suspects), TV (Black Donnellys), and books (Catcher in the Rye), and I'm always on the look out for suggestions.
So bring it on: Who's the best and worst of the unreliable narrators out there? What makes them work? When do they cross the line?