Fear in the Night

In a convoluted plot that keeps the viewer unsure whether there are supernatural forces at work or if the protagonist has gone off the deep end, this is the story of a man who is convinced that he is guilty of a crime which even a policeman friend of his cannot prove has even been committed. All the elements of suspense--mirrored room, spooky mansion, button, key, murder--are present and unexpected plot changes keep this very clever murder tale out of the realm of commonplace.