Ubaldo Impallato is a precarious elementary music teacher, for years in vain in search of a steady job, who to make ends meet with after school.

Among the children entrusted to him there is also Gigetto, who unlike the other companions has a singular characteristic: at the age of six he can sing with a wonderful baritone voice.

Thanks to an excellent performance in a television program for young talents, Gigetto is an immediate success and promises to become a real gold mine.

But at this point the greedy uncles of the child, who previously had refused to take care of him, show up in order to steal him from his guardian and be able to exploit him in his place.

When later, during the rehearsal of the work, it is discovered that his voice has returned to normal, the impresario is accused of fraud, and no one wants to keep Gigetto anymore, much less his uncles.