Summary Wowereit knows how to pack his policies into pithy slogans. When it comes to austerity, the smart mayor looks for and finds an ice-cold enforcer who hardly anyone knows at the time: his name is Thilo Sarrazin. Another duo at the head of the city: the friendly party mayor and the iron-fisted savings commissioner. The radical austerity programme they set in motion dramatically exacerbated the social conflicts in the poor city. This is particularly evident in the poor problem neighborhoods of Kreuzberg and Neukölln. The rough and poor image of the tough city of Berlin has long been exploited by young Berlin hip-hop artists around Kool Savas and his mate Sido. They transform it into hard-hitting and often adult-friendly Berlin battle rap and make it their trademark, which has conquered the youth rooms of the whole of Germany from the Kreuzberg basement. Berlin's techno and party scene also experienced a renaissance and moved from the now cramped center of Berlin to new locations full of industrial wasteland, which until then had been in a deep slumber: the banks of the Spree, where Bar 25 opened, among others, and made a significant contribution to Berlin's new image, which Mayor Wowereit once again put into a world-famous slogan: "Berlin is poor, but sexy".

• Documentary