Prince Klemens von Metternich orders Friedrich Gentz, one of his aides, to keep the Duke of Reichstadt---Napoleon Francois Joseph Charles---son of Napoleon and heir to the French throne, from thinking about French politics. Gentz enlists the help of ballerina Fanny Elsser, all the rage in several European capitals, to keep the Duke distracted.

Keller, a painter, while at the ballet is impressed with the beauty of Nicole and sketches her head on the body of a nude model. When it is shown, it causes embarrassment to Nicole's husband, Walter, a diplomat whose career is threatened.

German chancellor Otto von Bismarck promises the dying emperor Wilhelm I. to be loyal to his grandson. But the gap between young Kaiser Wilhelm II. and old Bismarck is rapidly widening. It soon appears that an era is coming to an end.

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.