This a beautiful May evening. The sun has just set behind the hill. Tonight the inhabitants of the Le Corbusier housing unit are going to experience a slight change of program. They are all sitting in front of their TV sets and in twelve minutes the face of the new President of the Republic will appear on the screens..

The series follows the adventures of lighthearted Jean-Paul Moulin, a police Commissaire, and his team as they solve crimes.

It is the start of the 14th century and Philip IV the Fair reigns supreme over France. His three sons would rule after him. Isabelle, his only daughter, is married to King Edward II of England. Under Philip's reign, France is great but its people are unhappy. Only one power dares to stand up to him: the order of the Knights Templar. When the last Grand Master of the Temple, Jacques de Molay, is burned at the stake, he curses Philip and so begins a dark period, full of blood and violence, death and tears ...

Bobby earns his living in Montmartre by duping naïve provincials, along with his pal Julien, as well as crooks and drug dealers, replaced by bicarbonate. His friend Monique, who dances at Le Paradou, is frightened by such a life. A crime of which he is not guilty occurs while he is robbing drug dealer Mureau. Bobby flees, but prefers to let himself be imprisoned. A serious accident is avoided. The brave Inspector Doirel is determined to set the boy straight. Monique will do her bit too.