When the prison guard checks on Otis and Luthor in their cell he finds they are gone, but there are holographic images of the two crooks from a projector. Several times the guard steps in front of the projector and the image of Otis and Luthor is shown on his back. One final time the full size images of Otis and Luthor are displayed looking intently at the chessboard, but when the guard again steps in front of the projector the images shown on his back are looking at the camera.