Set against the turbulent backdrop of early 1930s Weimar Republic Germany, the third series follows Detective Gereon Rath and Charlotte Ritter as they investigate a complex murder case connected to the film industry and the shadowy world of political extremism. As the Nazi movement grows increasingly powerful, the characters navigate corruption, personal trauma and moral compromise within a city on the brink of collapse. The season deepens the show's exploration of how ordinary institutions and individuals begin to buckle under the pressure of rising fascism.