Docudrama telling the story of a building with a breath taking career that began in the empire, flourished in the Weimar Republic, perished in the Nazi dictatorship, and was rebuilt after its partial destruction.

Kim Philby is the best British professional spy. The only difference is that, as a leading official in the British secret service, he not only works for the British side, but also as a double agent for the Soviets. He is supported by the diplomats Burgess and McLean.