British crime film directed by Peter Duffell and starring Bernard Lee, Moira Redmond and John Van Eyssen, loosely based on the 1918 novel "The Man Who Knew" by Edgar Wallace.
as Inspector Mann
as Freda Strickland
as Sergeant Rutledge
as Merril
as Rex Holland
as Shilton
as Harold Strickland
as Ashton
as Pawn Shop Assistant
as Pete Lake
as Avery
as Doctor
as Bill Cross
as Ballistics Scientist
as Rita
as Tony Hart
as Mary Nuttal
as Secretary
as Police Sergeant
