 Police Captain Filan is sent to assume command of the District Office of a port city on the Black Sea. There is evidence that the port authority and the local government are under the control of a criminal organization, and Captain Filan has been given the secret assignment of investigating the suspected corruption. Within days of Captain Filan s arrival, the Chief of Customs, Graube, is murdered. It is clear to Captain Filan that this was a warning to him, and he decides that it is now not just an assignment, but a mission of personal honor to both find the murderer and to uncover the inner workings of the corruption in the local government. Captain Filan is joined by Graube s widow, Vika, and the two begin a shrewd and intense investigation, which will lead them down a path with many twists and turns, as they uncover a series of clues that they hope will lead them to the leader of the underground criminal organization that controls the city.