X the Unknown
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.
- genus: Horror, Science Fiction, Mystery
- Studio: Hammer Film Productions
- keyword: monster, scotland, radiation, radioactivity
- cast: Dean Jagger, Leo McKern, William Lucas, Edward Chapman, John Harvey, Michael Ripper
