Inhalt: The Cemetery of the Nameless in Vienna is where those who take their own lives are buried - suicide victims who jumped into the Danube to kill themselves. But when the obvious victim of a murder washes up on the banks of the Danube, Karl initiates a homicide investigation. Supported by Anna and Sigmund, Constable Gruber heads into the world of prostitutes and pimps in Vienna's red-light district.