Geismer, in his attempts to get his former lover, Lena, out of Berlin, gets more and more involved in the search for Emil Brandt. At one point, Lena gives Emil's notes on Camp Dora to Geismer. When Lena and Geismer try to hand Emil Brandt over to the American prosecutor charged with handling war crimes cases, they are intercepted by the American authorities who want to protect Bettmann, and Brandt is murdered. But Geismer still has Brandt's notebooks, which he now trades in to the war crimes investigators of the U.S. Army (who have turned out to be in league with the other American authorities — the ones who want to keep that evidence confidential to whitewash Bettmann) in exchange for a "Persilschein" (a denazification document) and a visa for Lena, such that she can leave Germany.