Overview

Six scientists arrive at the creepy Headstone Manor to investigate a strange phenomena which was the site of a mysterious massacre years earlier where 18 guests were killed in one night. It turns out that the house is the place of a satanic cult lead by a sinister monk who plans to kill the scientists who are inhabiting this house of Satan.

Cast

Kenny Everett

Dr. Lukas Mandeville

Pamela Stephenson

Dr. Barbara Coyle

Vincent Price

Sinister Man

Gareth Hunt

Elliot Broome

Don Warrington

Stephen Wilson

John Fortune

John Harrison

Sheila Steafel

Sheila Finch

John Stephen Hill

Henry Noland

Cleo Rocos

Deborah Kedding

Graham Stark

Blind Man

Pat Ashton

Barmaid

David Lodge

Inspector Goule