Based on Ira Levin's compulsive piece of pulp fiction about Nazis in South America, this film has Gregory Peck and Laurence Olivier uneasily cast respectively as Nazi geneticist Josef Mengele and a Nazi hunter, Ezra Lieberman. The story centres on Mengele's evil plans to populate the world with clones of Adolf Hitler and Lieberman's efforts to track him down. The visuals are striking, but the tale eventually becomes absurd as it moves towards the inevitable confrontation between hunter and hunted.

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