Dr. Eric Vornoff, with the help of his mute assistant Lobo, captures twelve men for a grisly experiment; His goal to turn them into supermen using atomic energy. Reporter Janet Lawton, fiancée of the local lieutenant, vows to investigate Vornoff's supposedly haunted house.
Bela Lugosi
Dr. Eric Vornoff
Tor Johnson
Lobo
Tony McCoy
Lt. Dick Craig
Loretta King
Janet Lawton
Harvey B. Dunn
Capt. Robbins
George Becwar
Prof. Strowski
Paul Marco
Kelton
Don Nagel
Martin
