Andrea the son of Anita and Tristano killed himself on Christmas night. Tristan betrays his wife with Anna, Andrea's ex-girlfriend, who is later killed. A crescendo of tension as Anita listens to the switchboard phone .

The student Roberta has already been failed three times by Professor Giannelli in the same exam and does not intend to suffer a fourth. To get around the problem, the girl decides to give herself to the professor, provoking and seducing the teacher.

In line with the principles of his ecological "conversion", Matteo Argento, chief financial officer of a multinational company, leaves, along with his wife Lydia, the city's mayhem and pollution to move to a country house.