In this 1967 thriller, the diabolical Fu Manchu executes an audacious scheme to consolidate criminal power globally by replacing his nemesis Nayland Smith with a mind-controlled duplicate programmed for assassination. Directed by Jeremy Summers and based on Sax Rohmer's source material, the film features Christopher Lee's commanding performance as the titular villain, alongside Tony Ferrer and Tsai Chin. A masterwork of espionage cinema that explores themes of identity and domination through elaborate psychological manipulation.