Fantomas!
I thought it was pretty cool of Franju to have Detective Cocantin reading Fantomas, not just because it's an obvious reference to Feuillade's serials but because it adds to the pulpish spirit of the movie. And after watching this movie, I wish Franju had made his own version of Fantomas, the Genius of Crime.
This world is a comedy to those that think, a tragedy to those that feel.