Max asks Oskar for help after his young nephew suffers a breakdown at military school.
A murder investigation draws Max and Oskar into the sphere of nationalistic groups.
A killers gruesome calling cards and seemingly random choice of victims confuse Oskar.
A doctor and a detective team up to solve baffling cases in early 1900s Vienna.
Inspector Oskar Rheinhardt learns that Dr. Max Liebermann will be observing his case.