"Jim Ackland, who suffers from a head injury sustained in a bus crash, is the chief suspect in a murder hunt, when a girl that he has just met is found dead on the local common, and he has no alibi for the time she was killed."
John Mills
as Jim Ackland
Joan Greenwood
as Jenny Carden
Edward Chapman
as Mr. Peachy
Kay Walsh
as Molly Newman
Joyce Carey
as Mrs. Vinton
Catherine Lacey
as Miss Selby
Adrianne Allen
as Joyce Carden
Felix Aylmer
as Dr. Martin
Frederick Piper
as Det. Insp. Godby
John Boxer
as Det. Sgt. Troth
Patrick Holt
as Harry Carden
George Benson
as Mr. Pope
Jack Melford
as Wilcox
Esme Beringer
as Miss Heap
Ann Wilton
as Miss Parsons
James Hayter
as Garage Man
Frank Ling
as Booking Office Clerk
Juliet Mills
as Child
George Woodbridge
as Grey
Philip Ray
as Stebbins
Edward Underdown
as Passport Official
John Salew
as Ticket Inspector
Eric Ambler
Novel
Roy Ward Baker
Director
Screenplay
William Alwyn
Music
Irene Howard
Casting
Erwin Hillier
Director of Photography
Eleanor Abbey
Costume Design
Alan Jaggs
Editor
Alex Vetchinsky
Art Direction
Herbert Smith
Executive Producer
Harold Hurdell
Draughtsman
Arthur Evans
Still Photographer