Das Schwarze Band by Alex Beer

Set in the tumultuous backdrop of post-World War I Vienna, the story follows detective August Emmerich as he navigates a city rife with political unrest and social upheaval. Tasked with solving a series of gruesome murders, Emmerich delves into the dark underbelly of the city, uncovering a complex web of secrets and lies. As he battles his own personal demons and the ghosts of war, Emmerich must unravel the mystery before the killer strikes again, all while confronting the moral ambiguities of justice in a fractured society.