Sylvia (Carol Lynley) and her husband, Frank (Christopher Cazenove), check into their hotel room, only to find a woman and her elderly mother in their bed. They think the hotel made a mistake so they go down and get the manager, who returns to the room with them. There is no one else there--and he tells them they walked into the wrong room by mistake. They know they did not. A few years later Frank gets a job overseas and they start packing up their house. It's then they see the same two women. Are they ghosts? Are they warning them of something? There's a good payoff at the end I wasn't quite expecting. This episode of Fox Mystery Theater, directed by Val Guest (Quatermas Experiment, Day the Earth Caught Fire) is an entertaining supernatural tale, with the overall feeling of an extended Night Gallery episode. aka Hammer House of Mystery and Suspense: In Possession.