"Workmen digging in a building discover the remains of a 300 year-old devil cult."
Barbi Benton
as Caroline Trent
Gareth Hunt
as Peter Whiteway
Brian Deacon
as Alan Yardley
Peter Wyngarde
as Daniel Haswell
Patricia Hayes
as Granny Waters
Carol Royle
as Kim Osborn
Ralph Michael
as Father Harris
Gary Waldhorn
as Inspector Crane
Robert James
as Father Ambrey
Richard Hampton
as Ted Pinder
Angela Grant
as Jill
Paul Annett
Director
Dennis Spooner
Writer
John Peacock
