A moving story of a Polish small-town "dark blue uniform" police officer, Franciszek Kłos. The values he believes in are very simple. His role is to do his job and to provide for his family. Kłos believes that the job of the police officer is about following the orders of the superiors who are the Nazis. The orders include pursuing Polish conspirators, persecuting Jews and, if necessary, shooting and killing the opponents. The life of the officer changes dramatically when he receives a death sentence letter for treason from the Polish underground court.