Fear Chamber (La camara del terror/ The Room of Terror), also released as The Torture Zone, is a 1971 Mexican horror film directed by Juan Ibáñez and starring Boris Karloff and Julissa. It was filmed in May 1968, but was only released theatrically in 1971, 2 years after Karloff had died.[2][3]
Scientists discover a living rock beneath a volcano. It feeds on the adrenaline of frightened young women, so the scientists construct a fear chamber and kidnap young girls to feed the creature.