"Two spinsters have kept their mad brother locked up in their cellar for 30 years. Then he escapes ..."
Beryl Reid
as Ellie Ballantyne
Flora Robson
as Joyce Ballantyne
John Hamill
as Alan Marlow
Tessa Wyatt
as Nurse Sutherland
T. P. McKenna
as Det. Chief Sup. Paddick
Vernon Dobtcheff
as Newsmith
John Kelland
as Sgt. Young
David Dodimead
as Dr. Spencer
Christopher Chittell
as Baker
Peter Craze
as Roy
Dafydd Havard
as Stephen Ballantyne
Gail Lidstone
as Young Ellie
Elizabeth Choice
as Young Joyce
Merlin Ward
as Young Stephen
Anthony Heaton
as Anderson
Anabel Littledale
as Gloria
Howard Rawlinson
as Young Soldier
Roberta Tovey
as Paper Girl
Reg Lever
as Ambulance Man
Ted Karnon
Sound Mixer
Christopher Neame
Associate Producer
Paul Ibbetson
Second Assistant Director
Tony Dawe
Tony Tenser
Executive Producer
Dominic Fulford
Assistant Director
Ken Softley
Construction Manager
Ann M. Paterson
Production Secretary
Lew Warburton
Conductor
Caroline Langley
Unit Manager
Ted Underwood
Grip
Graham Harris
Producer
Weston Drury Jr.
Casting
Roger King
Art Direction
Annabel Davis-Goff
Script Supervisor
Ronnie Maasz
Camera Operator
Colin Hobson
Sound Editor
Tony Macaulay
Music
Harry Woodley
Gaffer
Harry Waxman
Director of Photography
Nicholas Napier-Bell
Editor
Desmond Dickinson
Olga Angelinetta
Hairstylist
W.T. Partleton
Makeup Artist
Mary Gibson
Wardrobe Master
James Kelley
Screenplay
Director