A Special Day (movie, 1977)

The film is set during the late 1930s: the occasion is the first meeting between Mussolini and Hitler. Left alone in her tenement home when her fascist husband runs off to attend the historic event, Antonietta strikes up a friendship with her neighbor Gabriele. As the day segues into night, Antonietta and Gabriele develop a very special relationship that will radically alter both of their outlooks on life.