Boys and men of Berlin. A captivating journey through their lives, love affairs and misdemeanours across the city's turbulent history. Felix and Walther bestride a deep class divide, forging an enduring bond in 1890s Prussia. Kaspar and Max navigate the fraught upheavals of the Weimar Republic by skilfully marketing the only commodity in demand. Young Kazimierz leaves his impoverished Silesian village and sets off on an epic journey to the Prussian capital, the seat of an ageing Frederick the Great. His heavenly beauty, endearing naivety and, ultimately, fate will transform his life once through the gates of the city. Echoes within echoes. Circles within circles. Wealth, poverty and moral compromise. The privilege and toxic masculinity of the Prussian officer class.