When a corpse is found in the Thames, the only clue is that the dead man was killed by a karate or judo expert.
Cast
John Bentley
Superintendent Wills
Patrick Allen
Dr. Nelson Pollard
Jacqueline Ellis
Elsa Marlowe
Wilfrid Brambell
Lock-Keeper
John Glyn-Jones
Dr. Maurice Tarn
Jane Murdoch
Honeymoon Wife
Brian McDermott
Det. Sgt. Stillman
Gerald Andersen
Major Paul Amery
Edward Atienza
Clerk
Ric Young
Johnny Choto
Robert Lee
Mr. Nam Lee
Yvonne Buckingham
Miss Russell
William Gaunt
Mitch Hallam
Michael Deacon
Angus
Arnold Lee
Soyoki
John Horsley
Pathologist
Lesley Nunnerley
Vera Martin
Malcolm Russell
Joe Martin
Yvonne Shima
Tamaya
Keith Faulkner
Lock-keeper's Assistant
Myo Toon
1st Chinese Man
Sano Wong
2nd Chinese Man
Burt Kwouk
Captain Feng
Timothy Parkes
Honeymoon Husband
Howard Pays
Police Sgt.
Peter Hager
Warden
Don McKillop
Reporter
Robert Russell
Uniformed Sgt.
Steve Reagan
Police Constable
Ping Ping Sam
Instructor in Gym
Crew
Clive Donner
Director
Robert Banks Stewart
Writer
Edgar Wallace
Novel
Derek Holding
Editor
Bert Mason
Cinematography
Bert Pearl
Assistant Director
Jack Greenwood
Producer
Jim O'Connolly
Associate Producer
Herbert Smith
Camera Operator
Ronnie Curtis
Casting Director
Eileen Welch
Wardrobe Supervisor
Hilda Fox
Hairdresser
Aldo Manganaro
Makeup Artist
Michael Shah Dayan
Sound Editor
Ronald Abbott
Sound Recordist
Sidney Rider
Sound Recordist
Charles Blackwell
Original Music Composer
Joe Levy
Production Manager
Peter Mullins
Art Direction