The students are specially quizzed by Professor Russo, and they all get top marks in philosophy. Serena enjoys working with Mimmo. Piero is having trouble because Sandra is harassing him, while Cinzia demands a photo of her supposed son, so she shows him a photo of Virgilio's daughter as a child. Lorenzo and Luisa arrange to meet on the tram to find their soul mate. Virgilio returns home to get some things and leaves without explaining himself to his wife; meanwhile, he begins to feel good about Doriana. Professor Russo begins to take care of Simona Fabbri, a difficult student, but must also face her own problems. Professor Di Giulio returns to class and helps Francesca with her assignment; outside of school, however, the student harshly scolds him. The day of the teachers' parent-teacher meeting arrives.