Well, it's certainly looking like they all work with the Thin Man, now that Melter appears.
Of course, we still don't know who the Thin Man is, or if it's a cover for a group. Danzig's comment that Crest had heard of him suggests that there really is a guy and that it's not Danzig, yet Fata's comment, as a Regina illusion, suggests Danzig does seem to be somewhat in charge or one of the main "researchers" into whatever they're investigating.
Whatever the case, these bastards certainly seem to be the ones responsible for turning Mary into Bloody Mary so it'll be interesting to see how we're supposed to feel any sympathy for them (although I still get the sense that they're all cursed). Heck, maybe Mary joined them willingly then had the memory of it removed, but I doubt it considering they planted her back in her own home to kill her parents.
I'm trying to work out how Fata left the room. I've never seen a spell for teleportation before (only those portals) and her presence seems to be required for her illusions to continue their existence, so if she was just creating an illusion of herself I'd have expected her to be outside, but no sign... And where the hell is Maytag anyway?
Oh the possibilities for Maytag. It's hard to say if she still has her D-Bag but I'm guessing they wouldn't leave her with such an arsenal. There's probabl some way to remove it and I'd say they've also removed Suspira's. Heck, they've read Maytag's mind, so they'd know she has one.