Der Mädchenkrieg (Maiden's War) (1977)

This movie, based on a novel by Manfred Bieler, chronicles the complex romantic and daily lives of three daughters of a German merchant living in Prague in 1936. The oldest daughter is Christine, who falls in love with and marries a porcelain dealer. The next younger daughter Sophie has an affair with a composer but falls for the porcelain dealer. The youngest daughter Katherina falls for a Czech communist member of the anti-Nazi underground. When the war comes, Christine becomes the lover of a Gestapo officer, Sophie goes to a convent as a nurse, and Katherina joins the partisans. After the war, the composer who had wood her originally kills Sophie's boyfriend, the porcelain dealer husband of Christine. The communist abandons Katherina for his career, and all three girls are returned to Germany as unwanted aliens.