Maîtresse (1975)

After breaking into a house he believes is empty, thief Olivier is caught by the owner, Ariane, who turns out to be a dominatrix. Improbably falling for her, Olivier returns periodically, and an impulsive romance blossoms despite Ariane’s profession. Soon Olivier becomes more familiar with her work, even joining in on occasion. However, when he discovers that Ariane has a son, he attempts to “fix” her, hoping to give her a better life.
Jean-François Stévenin, Barbet Schroeder
Gérard Depardieu, Bulle Ogier, André Rouyer, Nathalie Keryan, Roland Bertin, Tony Taffin, Holger Löwenadler, Anny Bartanovski, Serge Berry, Richard Caron, Pierre Devos, Jeanne Herviale, Michel Pilorgé, Cécile Pochet
tt0074883