Orgon and his mother swear by Tartuffe, the self-styled devout who lives off them. The other members of the family, scandalized by the clergyman's hold over them, will do anything to expose his hypocrisy. Michel Bouquet plays an almost monstrous Tartuffe, whose only weakness lies in his feelings for Elmire.

Inspector Bérurier, having inherited a mansion three years earlier, comes to collect rent from the tenant when the latter is murdered under mysterious circumstances. Béru calls Commissaire San Antonio to the rescue, and the two men discover that Laurenzi's hotel is home to a "brothel" whose director, Madame Albertine, soon reveals to the two policemen that Laurenzi was having an ongoing relationship with Helga, one of the boarders, and Mr. Max, a regular guest of the house.

In this drama that alludes to the Algerian War with France of the 1960s, Thomas is a deserter from the French Foreign Legion who is on the run from authorities. He helps damsel in distress Dominique, who has been taken hostage by a group of terrorists. Thomas is wounded but manages to escape after killing the guard who inflicted the injury. Dominique gives Thomas money to escape to France after he secures her freedom, but he is caught between the Foreign Legion and the terrorists seeking revenge.

In 1944, in Paris, the leader of a resistance network is looking for the traitor who gave away a radio operator.

In 1668, in the Cotentin region, witchcraft was still widely practiced. To get rid of an overly strict priest, a gathering of heretics took advantage of the night of Saint Martin to organize a sabbath. A young boy found himself involved in this black mass against his will. The religious authorities decided to investigate and punish the miscreants...