The Photographer of Mauthausen

Spanish photographer Francesc Boix, captured by the Nazis in 1940 and imprisoned in the Mauthausen concentration camp, works as a prisoner in the SS Photographic Service, hiding and leaking, between 1943 and 1945, and with the help of other Spanish prisoners, around 20,000 negatives with the purpose to show the free world the atrocities committed by the Nazis.