The Walls of Malapaga(1949)

Original title: Au-delà des grilles

After murdering his mistress and being hunted by the authorities in France, Pierre stows away aboard a ship bound for Genoa. Though he's immediately robbed after arriving, things look up for Pierre when he meets kindhearted Cecchina, who introduces him to her mother, Marta. Pierre and Marta fall in love, but police are closing in and the new couple may not have much time left.