"A group of potential heirs gather in a forbidding old house to learn which of them will inherit a fortune. Later, they learn that a flesh-rending maniac is loose."
Honor Blackman
as Susan Sillsby
Edward Fox
as Hendricks
Michael Callan
as Paul Jones
Wendy Hiller
as Alison Crosby
Olivia Hussey
as Cicily Young
Carol Lynley
as Annabelle West
Beatrix Lehmann
as Mrs. Pleasant
Daniel Massey
as Dr. Harry Blythe
Wilfrid Hyde-White
as Cyrus West
Peter McEnery
as Charlie Wilder
Radley Metzger
Screenplay
Director
John Willard
Writer
Roger Harrison
Editor
Theatre Play
Jo Gregory
Production Accountant
David Sutton
Sound Assistant
Steven Cagan
Original Music Composer
Allen Burry
Publicist
Monica Howe
Costume Designer
Martin Hume
Clapper Loader
Mike Fox
Camera Operator
Sarah Monzani
Hairdresser
Anthony Sloman
Sound Editor
Paddy Carpenter
First Assistant Director
Nick Pearson
Key Grip
Derek Creedon
Property Master
Ray Corbett
Associate Producer
Brian Bilgorri
Second Assistant Director
Clive Winter
Sound Recordist
Alan Carpenter
Assistant Director
Mary Hillman
Makeup Artist
Rose Tobias Shaw
Casting
Angela Allen
Continuity
Paul Carr
Sound Mixer
Lorna Hillyard
Tony Neale
Construction Manager
Anthony Pratt
Art Direction
Jane Oscroft
Production Secretary
Ken Weston
Boom Operator
Tommie Manderson
Alex Thomson
Director of Photography
John Golding
Focus Puller
Frank Connor
Still Photographer
John Hoesli
Richard Gordon
Producer