Based on the novel by Arthur Bernède, officer Jacques Miral “the ferret of the pointed tower” follows the trail of Willy Keanton’s murderer to Marseille as a bloodhound, who is suspected to be the same man named Mephisto who sabotaged the victim’s father’s laboratories for refusing to sell the paten More on Wikipedia or Mubi
Watch Méphisto (1931) French Film
No English subtitle