Nazi hunter Ezra Lieberman stumbles on a plot by war criminal Josef Mengele to clone Hitler. Laurence Olivier and Gregory Peck star in the adaptation of Ira Levin\'s bestselling novel.   Nazi hunter Ezra Lieberman (Laurence Olivier) is aghast when he stumbles on a plot by war criminal Josef Mengele (Gregory Peck) to produce clones of Adolf Hitler using cells taken from the late dictator\'s body. Tense drama based on Ira Levin’s farsighted novel that is doubly compelling in the light of recent scientific advances.