Maria and Guido go to the beach to be alone, and when they return home, covered in sand, Libero realizes they spent the afternoon together. Due to a mistake, Guido is suspended from the local health authority. Maria asks Nonno Libero not to tell anyone about her affair with Guido, but he realizes that everyone already knew. Meanwhile, Guido makes house calls, and patients show up at the Martini house because they want only him.