L'énigme du Mont Agel

One night, someone came looking for Mr. Stevens to take care of an urgent matter … Claude Stevens (played by Claude Machin), who ignored yet the urgent matters, slept an innocent sleep. After returning home, he discovered that Claude has disappeared. And the mysterious kidnapper entrusted an ape to looks after Claude.

Belphégor

Belphégor deals with a series of mysterious appearances by a masked-and-robed figure in the Louvre; a security guard is murdered, and a later police trap is foiled when the phantom—“Belphégor” (the name of a legendary demon)—uses knock-out gas. Journalist Jacques Bellegarde of “Le Petit Parisien” (the real-life newspaper which published the original story in serial installments), investigates, and eventually discovers famous detective Chantecoq and his vivacious daughter Colette are also on the case.