Antoine Brisebard, a famous comedy playwright, is struggling with financial difficulties and is preparing to sell his country villa to an English couple. What no one knows, however, is that Brisebard is actually a victim of blackmail since his wife Sylvie, a famous actress, is the daughter of a notorious robber-murderer. His extortionist is a malevolent criminal only known as Jo, who visits him often to pick up his hush money...