Several murders of nuclear scientists, that baffles Scotland Yard, occur in London around the same time that Bill Locklin, a special officer from the United States State Department, arrives to oversee the transfer of Professor Leon Dushenko, a Russian scientist who has fled the USSR. An attempt on Dushenko's life is made with a monkey's paw-print found at the scene.

Cast:Richard Conte, Rona Anderson, Russell Napier, Sylva Langová, Colin Gordon, Donald Bisset,

Genre:Crime,

country:United Kingdom,

Production:Merton Park Studios,