Shortlisted for the 2013 Costa Biography Award.

Part history, part biography, part true crime, Hanns and Rudolf chronicles the untold story of the Jewish investigator who pursued and captured one of Nazi Germany's most notorious war criminals.

May 1945. In the aftermath of the Second World War, the first British War Crimes Investigation Team is assembled to hunt down the senior Nazi officials responsible for the greatest atrocities the world has ever seen. One of the lead investigators is Lieutenant Hanns Alexander, a German Jew now serving in the British Army. Rudolf Höss is his most elusive target. As Kommandant of Auschwitz, Höss not only oversaw the murder of more than one million men, women, and children, but he perfected Hitler's programme of mass extermination. On the run across a continent in ruins, Höss is the one man whose testimony can ensure justice at Nuremberg.

Hanns and Rudolf reveals for the very first time the full, exhilarating account of Höss's capture, an encounter with repercussions that echo to this day. Moving from the Middle-Eastern campaigns of the First World War to bohemian Berlin in the 1920s to the horror of the concentration camps and the trials in Belsen and Nuremberg, it tells the story of two German men — one Jewish, one Catholic — whose lives diverged, and intersected, in an astonishing way.