26 of Iyar. Konigsberg

Martin Bergau, a former member of the Hitler Youth, confessed in his book years after the war that he had participated in the mass execution of Jews on the shores of the Baltic Sea.Marat Mardakhayev's movie tells this story, which remained unknown for many years.How did it happen?Why?And how did it happen that for decades no one talked about this page in the history of the Holocaust?