A man, Alan Talbot, keeps hearing electronic noises in his head. He kills a lady at the subway station, and then goes to pick up his fiancee Jessica. They are going to visit his aunt, but when they arrive, nothing is as he remembers it; buildings he doesn't recall, the university he works at is just an empty field, and his key doesn't fit the lock at his aunt's house. His parent's grave markers are replaced with a Walter Ryder and his wife. He looks up Walter Ryder, Jr. in the phone book, and pays him a visit. His key fits this door, and he meets his exact duplicate - Walter Ryder, Jr. Walter explains that Alan is a robot created by himself, and that he attacked Walter and ran off several days before. The two men begin to struggle. Later, Alan appears at Jessica's door and assures her everything will be fine. It is not Alan, but Walter. Alan has been de-activated.