Henryk Mandelbaum is the last living prisoner of KL Auschwitz made to work in Sonderkommando, who stayed in the concentration camp from April 1944 during the extermination of Hungarian Jews. Before he had worked in the quarry from which he went to the ghetto in Sosnowiec and then to KL Auschwitz. At the time 300 thousand people were sent to gas chambers. Now he meets a group of young people from Germany.