Kirk Douglas stars in this hallucinogenic, dread-leaden 1977 biblical horror film as Robert Caine, an executive who scoffs at the warnings against building a nuclear power plant in a network of sacred caverns in the Middle East believed to portend the end of days. But when people involved with the power plant undertaking begin to die in gruesome ways, Caine's encounter with an unnerving, unparalleled terror is just beginning.