HorrorMysteryScience FictionThriller

The owner of a coal mining operation, falsely imprisoned for fratricide, takes a drug to make him invisible, despite its side effect: gradual madness.

"They hear him! They feel him! But they can't stop him!"

Credits

Cedric HardwickeRichard Cobb

Vincent PriceGeoffrey Radcliffe

Nan GreyHelen Manson

John SuttonDr. Frank Griffin

Cecil KellawayInspector Sampson