Summary: A scientist notices strange frequencies coming from within the Earth. He and his assistants discover a living rock underneath a volcano. They bring the rock to their lab, and discover that it needs the hormones that are produced by humans when they are fearful in order to survive. They then abduct and sacrifice young girls to keep the living rock alive. (imdb)

Poster submitted by Gauntlet

Genres: Sci-fi, Suspense/Thriller, Fantasy, Horror

Country: Mexico, USA

Directed By: Jack Hill, Juan Ibáñez

Written By: Jack Hill, Luis Enrique Vergara

Starring: Isela Vega, Boris Karloff, Santanón, Julissa, Carlos East, Yerye Beirute, Eva Muller, Fuensanta

More information at the Internet Movie Database