Professor Mauthner, after many years of exile (having emigrated in 1933 to the USA), returns to Germany in 1948. He can in fact return to his teaching post, but the rejection and petty intrigues of his reactionary colleagues and students make his work almost unbearable.

Austrian actor Franz Huber, known for his impressions, is captured by the Gestapo and forced into plastic surgery to become Hitler's body double. Their plan is to poison Hitler and use Huber to take control of the Reich. Meanwhile, Huber's wife Anna sees her life coming undone as her husband has disappeared and her two sons are indoctrinated into the Hitler Youth.