When a corpse is found in the Thames, the only clue is that the dead man was killed by a karate or judo expert.
as Superintendent Wills
as Dr. Nelson Pollard
as Elsa Marlowe
as Lock-Keeper
as Dr. Maurice Tarn
as Honeymoon Wife
as Det. Sgt. Stillman
as Major Paul Amery
as Clerk
as Johnny Choto
as Mr. Nam Lee
as Miss Russell
as Mitch Hallam
as Angus
as Soyoki
as Pathologist
as Vera Martin
as Joe Martin
as Tamaya
as Lock-keeper's Assistant
as 1st Chinese Man
as 2nd Chinese Man
as Captain Feng
as Honeymoon Husband
as Police Sgt.
as Warden
as Reporter
as Uniformed Sgt.
as Police Constable
as Instructor in Gym
