I suppose place number one would be on the MacBeth theme, if you're not already familiar with the play MacBeth at Wiki is probably the place to start or this movie version with Patrick Stewart as the titular character, and it is good by the way, though it's set in a more modern flavor, or any of the five jillion other performances available on the net.

Not sure how much we can rely on the play as a way of guessing scum or town or roles, but it's probably a factor and I'm not going to feel guilty about suggesting anyone brush up on their Shakespeare even if it should turn out no advantage comes of it.

Next obvious bit, does anyone have any obvious leads or introductory information they want to put out? My flavor wasn't terribly long but it was more than 'you are X, win with Y' so I suppose that's worth asking.