In Pietrasanta all are excited for the annual party of summer end. Here we find four characters: Merigo, a naive guy passionate of bike; Pierre, son of the mayor; Simone, a pestiferous kid; Mario, lifeguard of "Bagnomaria".
Arturo Meraviglia is a struggling impresario who has to take care of Gioele and Rebecca, two children "inherited" by an old uncle. When he realizes that little Gioele has superpowers, his luck changes.
Broke, and armed only with his sense of humor, middle-aged Gianni lives with his mother in their old apartment. The debts are mounting, but if Gianni looks after the building manager's mother during the Ferragosto, a mid-August holiday, all will be forgiven.
Paolo needs to reach the castle of Alberto Caccia, where he was invited to spend Christmas with his family and Margherita, the ninth month of pregnancy. With them there will also be blessed, daughter of Alberto and childhood friend of Margherita, who was also pregnant. Among various mishaps and blunders, Paolo will combine another of his, coming to make everyone believe, because of a misunderstanding, that Alberto's died for his fault.