A mysterious criminal known as The Whispering Shadow commits crimes by means of a gang he controls by television and radio rays. Jack Norton, whose brother was murdered by The Whispering Shadow, suspects that the eerie Professor Strang - whose ghostly wax museum contains figures far too lifelike - may be involved in the crimes.
Cast:Bela Lugosi , Viva Tattersall , Malcolm McGregor , Henry B. Walthall , Robert Warwick , Ethel Clayton , Roy D'Arcy , Karl Dane , Lloyd Whitlock , Bob Kortman , Lafe McKee , Lionel Backus , Yakima Canutt , Kernan Cripps , Gordon De Main , William Desmond , Norman Feusier , Robert Frazer