The Devil Rides Out

The Devil Rides Out, known as The Devil's Bride in the United States, is a 1968 British horror film, based on the 1934 novel of the same name by Dennis Wheatley. It was written by Richard Matheson and directed by Terence Fisher. The film stars Christopher Lee, Charles Gray, Niké Arrighi, Leon Greene and Patrick Mower.

Plot Summary
When the Duc de Richelieu and his friend Rex Van Rin unexpectedly visit their good friend's son Simon Aron he immediately suspects that something is wrong. Aron is hosting a soirée of exactly 13 people, all supposedly astronomy enthusiasts. When Richelieu finds live chickens in a closet, he knows Simon is playing with black magic. He has come under the influence of the mysterious Mocata and rescue Simon and his friend Tanith Carlisle from their satanic baptism. Mocata is determined to have his new acolytes at his side however and unleashes the power of hell to take them back.

Scene Summary
The Duc has Tanith's spirit possess Peggy's mother in order to find Mocata.