Max Liebermann, a protégé of Sigmund Freud, teams up with Detective Rheinhardt to unravel a string of chilling murders set against the opulent backdrop of early 20th-century Vienna. As they navigate the city's vibrant cafes and esteemed opera houses, the duo confronts the darker side of society, blending psychological insights with investigative prowess. Their partnership not only seeks justice but also explores the complexities of human nature in a time of cultural upheaval, making each case a reflection of the era's psychological intrigue.