At the start of WWII, Alexander Jessiersky, an Austrian aristocrat, heads a great Viennese shipping company. He detests the Nazis, and when his board of directors asks him to go along with confiscating a neighbour’s large parcel of land for their thriving wartime business, Jessiersky refuses. Yet, without his knowledge, the board succeeds in sending the owner of the land, a certain Count Luna, to a Nazi concentration camp on a trumped-up charge. Years later the war is over, but after a series of mysterious events, Jessiersky, deeply paranoid, becomes convinced that Count Luna has survived and seeks vengeance; driven to kill the source of his dread, he decides to hunt down Luna – and his years-long chase after the spectral count finally takes him deep into the catacombs of Rome.