"A writer of murder mysteries finds himself caught up in a string of murders in London."
Michael Gough
as Edmond Bancroft
June Cunningham
as Joan Berkley
Graham Curnow
as Rick
Shirley Anne Field
as Angela Banks
Geoffrey Keen
as Supt. Graham
Gerald Andersen
as Dr. Ballan
John Warwick
as Insp. Lodge
Beatrice Varley
as Aggie
Austin Trevor
as Commissioner Wayne
Malou Pantera
as Peggy
Howard Greene
as Tom Rivers
Dorinda Stevens
as Gail Dunlap
Stuart Saunders
as Strength-Test Barker
Hilda Barry
as Woman in Hall
Nora Gordon
Vanda Godsell
as Miss Ashton
Gerald Case
as Bookshop Manager
Geoffrey Denton
as Sergeant at Jail
Sydney Bromley
as Neighbour
John Harvey
as Man in Bookshop
Carole Ann Ford
as Teen in Hall of Mirrors (uncredited)
Arthur Crabtree
Director
Geoffrey Muller
Editor
C. Wilfred Arnold
Art Direction
Jack Greenwood
Producer
Herman Cohen
Writer
Gerard Schurmann
Original Music Composer
Samuel Z. Arkoff
Desmond Dickinson
Director of Photography
Aben Kandel
Jim O'Connolly
Production Manager
Bill Shore
Assistant Director
Derek Holding
Sound Effects Editor
Maude Churchill
Wardrobe Supervisor
Gordon Bond
Hairstylist
Jack Craig
Makeup Artist
Harry Gillam
Camera Operator
Muir Mathieson
Music Director
Marjorie Owens
Continuity
Brian Blamey
Assistant Editor
