Mr. Pelletan's rascal son Bébert son got another F for playing in class. His punishment is an essay on the Merovingian king Dagobert. All they know is he had eight wives and reunited Francia. The ignorant knave's irreverent imagination turns that into a harem and a ludicrous war without armies, loaded with anachronisms, in a race against rival king Charibert for the crown of Reims. The king's right hand, archbishop Eloi, the later patrons saint of carpentry, is portrayed as an inventor.

Max and Riton, 2 thieves make plan to steal money in a train station office. They will operate through the wall in the public toilets.

In August 1952, a family of British tourists is found by the roadside in Haute Provence, brutally murdered. In the ensuing, very public, investigation a local landowner, 75 year old Gaston Dominici, is arrested for the murders, having been denounced by his sons. Under police interrogation, Dominici confesses to have killed the family and it looks certain that he will be charged, tried and sentenced to death. But then the case begins to collapse. The old man retracts his confession and the lack of evidence against him becomes apparent…