"Hinterland" takes place in Vienna in 1920 in the ruins of the Great War. After seven years of captivity in Russia as a prisoner of war, Peter Perg, a former detective, returns to his hometown. However, Vienna is no longer the same city. A stranger in a dark world, marked by hunger and crime, he is confronted with a mysterious murder: one of his comrades, with whom Perg was in Siberia, has been murdered and he sets himself the goal of finding the murderer to translate him in justice.