Based on Ira Levin's novel, this is a fantastic movie hypothesis - what if the escaped Nazis who recollected in South America tried to give rise to a fourth reich and bring about the Aryan paradise their Fuehrer foresaw?

Gregory Peck is a chillingly cold Josef Mengele, still carrying out bizarre and brutal clinical experiments on his Paraguayan estate. Ezra Lieberman (Olivier, bringing a vulnerable humanity to the role), the great Nazi hunter, is fighting an uphill battle from the Viennese flat he shares with his sister as the world tries to forget Nazi war criminals still exist.

Harassed by a young Jewish investigative reporter (Guttenberg) about a Nazi plot unfolding in Latin America, he reluctantly agrees to look into it after the young man is brutally murdered. As the story unfolds and Lieberman explores the depths of what seems to be a conspiracy, we learn the shocking truth. The bare bones of a regrouped Nazi party (albeit more carefully hidden) exists. And in a plan that's been decades in the making, Mengele is trying to bring about the exact environmental and genetic conditions that created the first Hitler in order to create a small army of them.

The finale is a bit of a letdown - Lieberman and Mengele fighting hand to hand to the death in the house of one of the Hitler-to-be boys - but the story is gripping and the performances great.