When Betty is caught en flagrante, her bourgeois in-laws and husband force a divorce settlement upon her and bar her from seeing her two daughters. She is rescued from an alcoholic stupor by Laure, a middle-aged woman who takes Betty to her hotel lodgings, extends friendship and care, and listens to her story. Laure's lover, Mario, the proprietor of the bar where Betty and Laure met, is first a friend, then Betty's next conquest.