Sophie (Dominique Laffin) lives with Corinne (Josiane Balasko) and Sylvie (Caroline Cartier) in an apartment in the Parisian suburbs. Corinne is a waitress in a snack bar, Sylvie sells in the markets. Sophie is looking for work - in principle - but is especially keen to win handsome boys whom she unearths at random during her crazy motorcycle races. However, it is precisely the day when she is entrusted with an investigation to be carried out that Sophie will meet the one who will take a privileged place in her life: Antoine (Roger Mirmont). This one works in an architect's office. Sophie's amorous frankness confuses him and he has a tendency to flee from her very direct advances. It is then Sophie's turn to be disoriented. As, moreover, their physical relations leave something to be desired, Sophie succumbs to the very manly charms of a karateka encountered in the train. Alas. - For Sophie this is not yet the solution. The sexual performance of her lover does not fill her soul. And it is towards Antoine that she will try once again to return. Maybe differently.