At the age of 40, a group of former schoolmates find themselves having to repeat the baccalaureate exam, as their results were canceled by the Ministry of Education. Forced to attend high school again for the year, they meet a new generation, take a dip into the past, and relive the fears and anxieties that only school can provide.
Piero, Lorenzo, Luisa, Francesca e Serena sono ex compagni di scuola che, alla soglia dei 40 anni, sono costretti a ripetere l'ultimo anno di lieco a causa di un errore nell'esame di maturità.