I don't know what happened with that lie detector thing. I can't figure that out and I don't see Bella and Edward not being in the game unless it's for a huge laugh out of Titania come end game and no one has counter claimed them so they must be Bella and Edward.
And if they are indeed those two characters I can't see either one of them working with mafia. It just goes against everything this theme is based upon.
Spoiler for HIT-GIRL CORRIDOR *BEST.SCENE.EVER!* :