On his wedding night with Hilda Bergmann, the daughter of a swedish chemist, the young and rich american Willy Keanton is stabbed by an unidentified masked man. He kidnaps the young woman, who is found later on by the count Robert d'Arbel. The detective Jacques Miral, nicknamed « the pointed tower's ferret » is put in charge of the case. Soon, he discovers that an international bandit, Méphisto, seeks to seize the formula of a process against asphyxiating gas, invented by professor Bergmann. The struggle is tough between Miral and the uncatchable Méphisto. Monique Aubray, Keanton's secretary and engaged to the detective, the Nostradamus stallholders and the « mastiff of Bordeaux », and the famous novelist Fortuné Bidon are also involved in the case...
as Jacques Miral
as le professeur Bergmann
as Hilda Bergmann
as Monique Aubray
as Fortuné Bidon
as Richard
as la femme X
as Nostradamus
as Mme Palmarède
as Fanoche
as Robert d'Arbel
as Willy Keanton
as Cornelius
as Le « Dogue de Bordeaux »
as Édouard
as Le juge d'instruction
