The Invisible Ray (1936)
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Dr. Janos Rukh discovers a certain type of radium that has almost magical healing properties. But the element has a dangerous side, too, and it has already started affecting Rukh. Consumed by paranoia, he begins to suspect that his wife is having an affair. Wild for revenge, Rukh hatches a deadly plot...using his own poisoned body as a weapon to kill.
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Cast
![](https://image.chilimovie.com/public/en/300px/20210813/fVi0QkiziavXB8HnWk5NzRcnCO1.jpg)
Boris Karloff
as Dr. Janos Rukh
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