A MacGuffin isn’t the name of a breakfast sandwich, but it could be — that is, if a movie involves characters trying to get that sandwich. The MacGuffin, also spelled McGuffin or maguffin, is any object in a film that drives the story forward, like the secret papers or the stolen necklace. Alfred Hitchcock made the MacGuffin famous, and explained it this way in a 1939 lecture at Columbia University: “It is the mechanical element that usually crops up in any story. In crook stories it is always the necklace and in spy stories it is always the papers. We just try to be a little more original.” This is part of a complete episode.