On the 19th of January, 1942, in Nazi occupied Poland, Mieczysław (Mietek) Bednarski, an officer in the Polish resistance, was arrested in Warsaw. He would spend the next nine months in Nazi custody, six of them in the concentration camp of Auschwitz. In this historical documentary, based on excerpts of the diary Bednarski wrote after being released, a wartime story is told, and the phenomenon of correspondence from Auschwitz is evoked.