Documentary filmmaker Florian Opitz is one of Germany's best documentary filmmakers. In his film "Capital B" he takes on the German capital.

The five-part series starts with the fall of the Berlin Wall and covers the period up to the 2021 Berlin referendum on the expropriation of the real estate group Vonovia. Opitz: Berlin is now back at the beginning. A city that goes in circles. Just like 30 years ago, after the end of the GDR.