After the auditions, Domenico asks Barbara if he can walk her home, but she refuses. Robbo and Chiara go to eat pizza with their father, who however has to give them bad news and Chiara takes it badly. Matteo, on the other hand, locks himself in his room and won't even let his uncle in.

Maestro Ruggero Fiore, who has conducted in the most important theaters in the world, will arrive at the conservatory. Professor Marioni defines and assigns the roles of each musician within the orchestra, but not everyone is happy.

A chaotic day in an Italian classroom: amid grammatical difficulties, unexpected incidents, and group dynamics, tensions, irony, and solidarity intertwine between students and teachers.

Matteo is having a violin lesson when Marioni passes by in the hall and hears him. Matteo's lesson ends early and he is about to learn more about the orchestra conductor everyone thinks of as il bastardo (the bastard).