Under the container, which crashed on a passenger car, a rich businessman Kraus died. Investigators quickly concluded it was not an accident. There are several motives for the murder: Kraus was a gambler and the owner of an illegal gambling house, he also had a number of mistresses, and the discarded ones would gladly take revenge on him, moreover, his wife knew about his philandering and it did not work out in the family. Commissioner Brandtner ventures into the gambling underworld to try to find the truth.
