The police plans to use the same ways criminals use and infiltrate Tony Lo Bianco in the gang.
Police Superintendent Ferrari disagrees but Tony begins his operations and meets Paulette, Maurice's daughter.
Tony and Paulette find out that perhaps Maurice is not responsible for Montano's death and they discover they have to struggle to save their lives.
[1] The film was released with the English-language title on Danish VHS as Don't Trust the Mafia.
[1] In a retrospective review, Roberto Curti stated that Bianchi's direction was "perfunctory as ever" with his "shoestring budget" being revealed "in every shot".