The stairs lead into the ground floor of a richly furnished house. Brian realizes it’s a house and not a condo as he and Art move rapidly from room to room, as he gets glimpses through exterior windows, as he realizes the spaces here are bigger than in any condo he’s ever seen, except on Corporate Lifestyles . Maybe the creatures they’re hunting have infected some big wiz corporate exec. It’d have to be a real prime mover for the slag to afford an actual house.