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
