Fake Vampire Mirror

A normal living room has a mirror installed above the mantelpiece (e.g.).

The mirror is actually not silvered; it is merely a sheet of glass. Behind the glass is a reversed full-size replica of the room and all of its contents.

Beyond the door(s) of the reversed room is a workshop for the production of necessary props. This includes large 3D printers, colour laser printers and copious workbenches for cutting out and assembling cardboard mock-ups, as well as a substantial library of objects and garments. There is an observation tower to allow the workshop operators to see what unusual items visitors to the house are bringing with them.

Black-clad ninjas lurk behind the furniture to move and adjust the positions of the objects. The walls of the reverse room each side of the “mirror” are fitted with giant video screens, displaying feed from concealed cameras looking into the real room, so that the ninjas can accurately position things outside of the direct line of sight of the “mirror”.

For special occasions, a team of actors can be drafted in to mimic the poses and actions of users of the actual living room.

All movable items in the reverse room include powerful electric motors to allow them to be remotely moved. Some of these (e.g. door and window opening) can be automated from sensors in the real room.