American couple Darlene and Marvin Dewey (Annie Ross and Ed Devereux) are trying to trace Darlene's family tree; Sir George's brother, Albert, married Darlene's great, great grandmother, his older sister Alexandra never married but family legend told that his younger sister, Clara, eloped with an American and Mrs. Dewey wants to find out if this is true. She has all sorts of gadgets to get in touch with spirits as she wants to ask Sir George.