Denis, a poor student in philosophy, works as a night porter in the Paris market of Les Halles in order to pay for his studies. Constantly weary, he falls asleep…

After being left for another man by his wife, Charles Bellanger raises his only son to fear and suspect women. Years later, such an education is bearing fruit.

A murderer and his girlfriend on the run from the police arrive at a cafe-hotel where they are recognized, so the woman tells the customers the story behind his crime.

Paris is prey to an invisible terror against which the police can do nothing: a sinister organization that sows chaos and death. The intrepid journalist Philippe Guérande and his partner…