For years now, Chief inspector Gustave Picard has been trying to bring down Salviati, the dreadful leader of a drug-selling gang. Lucienne Préville, an informer who works for him, has infiltrated the gang but her position is dangerous. On the other hand, Scoppa, Salviati's former right-hand man, has started challenging his former boss. Will Salviati, the brutal public enemy, clear off at last?
Salviati
Sylvia
Commissioner Gustave Picard
Scoppa
Siro
Baron Darmont
Juliette Picard
'Mon Oncle'
Dolly Darmont
First singer of the duo
Second singer of the duo
Engineer Philippe Dancourt
Inspector Paul
Lucienne Réville