The Fiendish Plot of Dr. Fu Manchu

The story concerns the 168-year-old Fu Manchu, who must duplicate the ingredients to the elixir vitae (which gives him extended life) after the original is accidentally destroyed by one of Fu's minions. When the diamond "The Star of Leningrad" is stolen by a clockwork spider from a Soviet exhibition in Washington D.C., the F.B.I. sends a pair of special agents to seek the assistance of Scotland Yard. Sir Denis Nayland-Smith predicts that Fu will be thwarted by the tight security (several aged Beefeaters) at the Tower of London.