Working in the field of high technology, the suitcase contains a machine he proposes they use for a game. By connecting electrodes to the temples of all in the room, with the flip of a switch, everyone switches bodies. The game is to figure out who is now possessing whose body. It’s a tripped-out version of Mafia (also known as Werewolf) that the crew abuse to live out their desires, envies, and vendettas.