Fatherland - Robert Harris It's 1964, Joseph Kennedy is President of the United States, Adolph Hitler is about to celebrate his 75th birthday and his rule over the European Community since the war ended in 1945. Germany is harassed by partisans and terrorists in the Urals who are provided with weapons and moral support by the United States.
A rapprochement between Kennedy and Hitler is in the works, but suddenly several prominent Nazis are discovered dead, either by unexplained accident or suicide. Xavier March, a Berlin SS-Kriminalpolizei investigator, finds the circumstances suspicious, especially when the Gestapo immediately takes charge and closes off all avenues of investigation.
So begins Robert Harris's Fatherland. It's a great detective story based in part on actual documents. Enough said - no point in ruining the plot.