Spencer and his family are expecting a visit from Great-Aunt Alice and her dog, Susan. All Spencer knows is that she's dignified and graceful, with long, beautiful hair -- the dog, that is. Spencer and his own pup, Barney, are excited to have another dog to play with and decide to give her a chance. But it soon becomes clear that Susan is no regular dog. She eats cake off a china plate, takes scheduled naps, and needs an umbrella held over her in...