This is an exposition of the social and political history of renaissance Florentine history, told through dramatized conversations between the main participants, Cosimo de Medici and Brunelleschi.

Returning from Switzerland to Rome, the boss prof. Salviati, called 'The Prince', finds his business compromised by Rudy, a small local bandit full of presumption, audacity and men ready to kill. Commissioner Baldi a young and brave employee, will fight against them with the help of an ex-employee Rampelli.

Fabio Testi is an undercover cop doubling as the bodyguard (hence, “Gorilla”) of a cantankerous middle-aged industrialist targeted for extortion.