Scooby and the gang check into a hotel, and get wrapped up in a spooky mystery! Castle Rock Hotel feels more like a haunted house than a resort, and the only other guest there, Madame Magnificent, is awfully unfriendly. Meanwhile, a jewel thief is terrorizing the town and it looks like the hotel will close down if it can't get more business. Can Scooby and the gang catch the crook in time to save Dr. Franklin's castle?