Carl von Menen is 28 years old, suave, wealthy and a rising star at the German Foreign office, yet he lives a duplicitous and dangerous life: he abhors the Nazis and wants Hitler dead, but his expectations of seeing a Nazi-free Germany shrink to despair, when he is unexpectedly assigned to Buenos Aires to keep a watchful eye on the emerging United Officers Group (GOU), a pro-Nazi/Fascist faction of military officers, led by the aspiring Colonel Juan Domingo Peron.
In Buenos Aires, von Menen is sucked into a cauldron of treachery, deceit, military revolutions and murder, heightened by the agony of his secret ideology, the long-reaching tentacles of the Gestapo and his clandestine dealings with Colonel Filipe Vidal, a man with a devious and sinister agenda.