The famous composer Broch receives the assignment to compose a cantata on the occasion of the fiftieth birthday of Adolf Hitler. However, the SS officer Gottlieb knows that Broch is not a Nazi sympathizer and sends someone to keep an eye on him, namely his mistress Ursula, who has everything to become a famous composer. Broch gets it after a while to have doubts for Ursula about National Socialism, her great hero Hitler, and even her Aryan origin.