Two different restorations of The Cabinet of Dr. Caligari superimposed over one another and staggered in time to make the characters appear as phantoms in each others scenes.  This composite is projected toward the windows of the trailer onto rear screens behind perforated metal panels that create an illusion of three dimensionality.  A large public address audio system within the trailer plays an aggressively loud composition by Joe Potts that, from outside, makes the trailer appear to vibrate as if it were about to explode.