A group of friends search for a young Oxford student named Richard Fountain (Patrick Mower) who has disappeared while researching in Greece. They are shocked to find, that he has come under the spell of a beautiful Greek girl and her suspicious associates.
The friends find that wherever he has been a number of murders have taken place. They further find that Chriseis is the leader of a vampire cult, whose blood-sucking methods include the use of S&M sex.
After they think they kill her, they return to Great Britain, unaware that their friend is now a vampire.
- Imogen Hassall appeared as Nadya in the 1966 episode "Flight Plan for the British TV series "The Saint".
- Imogen Hassall appeared as Cleo in the 1968 episode "Reply Box No 666" for the TV series "The Champions".
- Imogen Hassall appeared as Ayak in the 1970 British prehistoric Hammer horror film "When Dinosaurs Ruled the Earth".