Harry Price, a real-life psychic researcher famous for exposing the tricks of fraudulent spiritualists in London after World War I is infamous, too, for a few long-ago frauds of his own. After a séance goes tragically awry, Harry vows to play it straight, until a distraught, socially prominent woman asks him to rid her home of ghosts. Will he tell her the hard truth about the psychological source of her fear? Or comfort her with the lies she wants to hear?