The powers of good are pitted against the forces of evil as the Duc de Richelieu wrestles with the charming but deadly Satanist, Mocata, for the soul of his friend. Mocata has the knowledge and the power to summon the forces of darkness and, as the Duc de Richelieu and his friends remain within the protected pentacle, they are subjected to ever-increasing horror until thundering hooves herald the arrival of the Angel of Death.
Christopher Lee
as Duc de Richleau
Leon Greene
as Rex Van Ryn
Patrick Mower
as Simon Aron
Niké Arrighi
as Tanith Carlisle
Charles Gray
as Mocata
Sarah Lawson
as Marie Eaton
Paul Eddington
as Richard Eaton
Patrick Allen
as Rex Van Ryan (voice)
Rosalyn Landor
as Peggy Eaton
Gwen Ffrangcon Davies
as Countess
Russell Waters
as Malin
Eddie Powell
as The Goat of Mendes
