An American occult novelist battles to save the soul of a young girl from a group of Satanists, led by an excommunicated priest, who plan on using her as the representative of the Devil on Earth.

• Hammer Film Productions
• Terra-Filmkunst
• Richard Widmark
• Christopher Lee
• Nastassja Kinski
• Honor Blackman
• Denholm Elliott
• Michael Goodliffe
• Eva Maria Meineke
• Anthony Valentine