The Breach (1970 movie)

The Breach is a 1970 French Italian Belgian thriller movie directed by Claude Chabrol (who also stars) and was based on the novel "The Balloon Man" by Charlotte Armstrong. It stars Stéphane Audran, Jean-Pierre Cassel, Michel Bouquet, Annie Cordy, Jean-Claude Drouot, Jean Carmet, Catherine Rouvel.