On the eve of World War II, the German Kurt Müller, his American-born wife Sara, and their three children, having lived in Europe for years, visit Sara's wealthy mother near Washington, DC. Kurt secretly works for the anti-Nazi resistance. A visiting Romanian count, becoming aware of this, seeks to blackmail him.
Watch on the Rhine is a 1943 American drama film directed by Herman Shumlin and starring Bette Davis and Paul Lukas. The screenplay by Dashiell Hammett is based on the 1941 play Watch on the Rhine by Lillian Hellman. Watch on the Rhine was nominated for the Academy Award for Best Picture and Paul Lukas won the Academy Award for Best Actor for his performance as Kurt Muller, a German-born anti-fascist in this film.