Inspector Bérurier, having inherited a mansion three years earlier, comes to collect rent from the tenant when the latter is murdered under mysterious circumstances. Béru calls Commissaire San Antonio to the rescue, and the two men discover that Laurenzi's hotel is home to a "brothel" whose director, Madame Albertine, soon reveals to the two policemen that Laurenzi was having an ongoing relationship with Helga, one of the boarders, and Mr. Max, a regular guest of the house.
Commissaire San Antonio
Inspecteur Pinaud
Francis
Maximilien Bernal
Madame Albertine
Policier
Jojo, maquereau
Inspecteur principal Bérurier
Nadia Vandel
Wanda Berger
Vérian
Le supérieur de San Antonio
Serge
Félicien dit 'Finfin la bricole'
Helga
Berthe Bérurier
La fille dans la grange
Le garçon dans la grange
Le faux jardinier
Le chauffeur de taxi
Un client (non crédité)