Coming from two completely opposite worlds, these two brilliant intellectuals never met: Rudolf Roessler was German and a fervent Christian, Sandor Rado a Hungarian Jew and an early communist. The unlikely collaboration of their respective networks in the heart of neutral Switzerland was decisive in the outcome of the war in the East and in the fall of Nazism. The Rado - Roessler mystery traces a key episode of the Second World War and bears the seeds of the Cold War. Their journeys through World War II made them the conflict's most important and enigmatic spies. 80 years later it remains a historical enigma.—Climage