Spanish photographer Francesc Boix, imprisoned in the Mauthausen-Gusen concentration camp, works in the SS Photographic Service. Between 1943 and 1945, he hides, with the help of other prisoners, thousands of negatives, with the purpose of showing the freed world the atrocities committed by the Nazis, exhaustively documented. He will be a key witness during the Nuremberg Trials.
Mario Casas
as Francesc Boix
Richard van Weyden
as Ricken
Alain Hernández
as Valbuena
Adrià Salazar
as Anselmo
Eduard Buch
as Fonseca
Stefan Weinert
as Ziereis
Rubén Yuste
as Rosales
Nikola Stojanovic
as Bonarewitz
Frank Feys
as 'Popeye'
Marc Rodríguez
as Nurse
Albert Mora
as Musician
Joan Negrié
as 'Lejías'
