Progressive schoolteachers Landi and Anna have a profound influence on two of their young students, Mirella and Franco. The two kids are enamored with one another and decide to experiment with some of the knowledge they've gleaned in the classroom.

Naples 1821. Alphonse, a young poet belonging to a noble French family, is caught by a storm at sea. Fortunately the boat manage to reach the shores of Procida, where Alphonse is welcomed by the family of Andrea. Here he meets the beautiful Graziella.

After a factory worker is killed, Sergio Bruni is placed on remand for two years before being released for lack of evidence. Shunned by his wife and his colleagues, he must now discover the true culprit.