Jenny Hélia

Séverine and her husband Roubaud kill their former employer in a train. Engineer Jacques watches them, but doesn't tell the police, because he's in love with Severine (imdb)

In the 1920s, the Provence is a magnet for immigrants seeking work in the quarries or in the agriculture. Many mingle with locals and settle down permanently - like Toni, an Italian who has moved in with Marie, a Frenchwoman. Even a well-ordered existence is not immune from boredom, friendship, love, or enmity, and Toni gets entangled in a web of increasingly passionate relationships.