October 1944: In the long, narrow undressing rooms in Auschwitz-Birkenau, prisoner Jakub Bak toils under the scrutiny of SS guards. Like other members of the Sonderkommando, Jakub was selected on arrival for an unthinkable job: sorting through the clothes of the dead and moving their bodies from the gas chambers to the crematoriums. In this hell within a hell, Jakub clings to the promise he made to his murdered father -- to live, at any cost -- and to the moments he is able to spend in the company of Anna, imprisoned in the women's camp.