A scientist becomes murderous after discovering, and being exposed to the radiation of, a powerful new element called Radium X.

Filmrangering: 6.5 / 10 (2762)

Skrevet av: John Colton - Lambert Hillyer - Howard Higgin - Douglas Hodges

Forfattere: Howard Higgin - Douglas Hodges

Roller: Boris Karloff - Bela Lugosi - Frances Drake - Frank Lawton - Violet Kemble Cooper

AKA: Le rayon invisible

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