The Nazis are clearly the villains in So Ends Our Night, but since the film was made before America's entry into World War II, Adolph Hitler goes unmentioned (we wouldn't want to lose those foreign markets, would we?) Based on Erich Maria Remarque's novel Flotsam, the film zeroes in on three German refugees. Frederic March despises the Nazis on ideological grounds; Margaret Sullavan, a Jew, is fleeing for her life; and Glenn Ford, born of a Jewish mother and Aryan father, is racked with confusion and torn loyalties. The three separate as they move from country to country in Europe, just a step or so ahead of the advancing Nazis. As Sullavan and Ford fall in love, March puts his life on the line by trying to arrange a reunion with his ailing wife Frances Dee, who has remained in Germany. Had So Ends Our Night been released a few months after the US entry into the war, it might have done better at the box office.