Sobibor traces the life of Berek (later Bernard) Schlesinger from his Polish shtetl childhood to his life during the Holocaust hiding in the woods, finding refuge with non-Jews, confinement in Sobibor, escape during the uprising, working with partisans documents. A physician after the war, he follows a relentless, unfulfilled pursuit of retribution for Nazi war criminals through the courts. The Sobibor uprising and its leaders, Alexander Pechersky, are pivotal to the novel.