Synopsis:
Army radiation experiments awaken a subterranean monster from a fissure that feeds on energy and proceeds to terrorise a remote Scottish village. An American research scientist at a nearby nuclear plant joins with a British investigator to discover why the victims were radioactively burned and why, shortly thereafter, a series of radiation-related incidents are occurring in an ever-growing straight line away from the fissure.
| Directed by: | Leslie Norman |
|---|---|
| Written by: | Jimmy Sangster |
| Runtime: | 81 minutes |
| Tagline: | It rises from 2000 miles below the earth to melt everything in its path! |
Cast:
Dean Jagger
Dr. Adam Royston
Dr. Adam Royston
Leo McKern
Inspector McGill
Inspector McGill
William Lucas
Peter Elliott
Peter Elliott
Edward Chapman
John Elliott
John Elliott
John Harvey
Maj. Cartwright
Maj. Cartwright
Michael Ripper
Sgt. Harry Grimsdyke
Sgt. Harry Grimsdyke
IMDb
X: The Unknown movie stills
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Also known as:
- Lo desconocido
- X, O Monstro Radioativo
- XX... Unbekannt