It is the late 1950s. Flourishing under the economic miracle, Germany grows increasingly apathetic about confronting the horrors of its recent past. Nevertheless, Fritz Bauer doggedly devotes his energies to bringing the Third Reich to justice. One day Bauer receives a letter from Argentina, written by a man who is certain that his daughter is dating the son of Adolph Eichmann. Excited by the promising lead, and mistrustful of a corrupt judiciary system where Nazis still lurk, Bauer journeys to Jerusalem to seek alliance with Mossad, the Israeli secret service. To do so is treason — yet committing treason is the only way Bauer can serve his country.

In the aftermath of the Second World War, Josef Mengele, the Nazi doctor at Auschwitz, escapes to South America to rebuild his life in hiding. Through the eyes of his son who finds him again, Mengele is confronted with a past he can no longer ignore. From Buenos Aires to Paraguay via Brazil, the man who became known as “The Angel of Death” will organize his methodical disappearance to avoid any form of trial.