Ira Levin's best-selling novel is the basis for this incredible film about the perpetuation of a new race of Hitlers. When one of his proteges locates the elusive Nazi war criminal Dr. Josef Mengele (Peck), famed Nazi hunter Ezra Lieberman (a wonderful Olivier) stumbles on Mengele's grand scheme to murder 94 seemingly unconnected men a scheme that could somehow launch the Fourth Reich.