
When they finally arrive the German, who the family are learning is either a Doctor or Scientist, insists of renting a room from them and to overcome their reluctance sweetens his request by overpaying as he has sensed that the family is cash poor. Eva the heavily pregnant mother is German speaking, as are so many of the local residents as the best school in the area was the German one, and she welcomes him into their home. Her husband Enzo is a struggling doll-maker and although a man of few words and simple tastes, he is the only one in the family who is not impressed with the charm onslaught from this very creepy stranger in their midst.
The 'Doctor' is particularly taken by Lilith the 12 year old of the family who has always been much smaller than the norm for her age ever since she was born 2 months premature. Soon he is trying to persuade the parents that with the hormone treatment that he has been working on, he can improve Lilith's growth rate dramatically. They are all initially reluctant to even consider this course of action but Eva relents after Lilith suffers another brutal day of taunting at her school because of her size. However she insists that they keep the news of this change of heart from Enzo until at least Lilith starts gaining some height.
Now the 'Doctor' has gained Eva's confidence he turns his attention to her, especially when he discovers that she is going to give birth to twins as we eventually find out that he has some plans of his own for these yet unborn babies.
This movie from Argentinian filmmaker Lucía Puenzo, adapted from her own novel, never hides the fact that the Doctor is none other than Josef Mengele the notorious Nazi who did barbarous and inhuman genetic experiments on the inmates of Auschwitz earning himself the moniker 'The Angel of Death.' This highly believable fiction is based on the fact that after the War he, like so other high ranking Nazis, fled to South America where he continued his cruel work on pregnant women and children until his death in Brazil in 1979.

This chilling tale succeeds mainly due to the combination of a convincingly sinister performance by Spanish actor Àlex Brendemühl as the menacing Mengele, and also the bleak remote landscape dramatically captured by cinematographer Nicolás Puenzo, who is also the Director's brother. This was Argentine's official submission for Best Foreign Picture Oscar, and although it didn't end up with a Nomination, it was definitely worth a consideration.