Gaetano, a dealer, decides to set up a gang of robbers to attempt a blow to an important Neapolitan bank. He addresses to Sasá, a wedding photographer, former robber and cardiopathic; to O’ Sciomen, a legendary robber just got out of jail; to Ruocco, a boxer disqualified and finally Carmine, a plumber with a gambling habit. Together they organize the millionaire robbery crossing the Neapolitan sewer system.