A group of students from the San Crispino school for boys take a holiday in the United States, traveling from New York to Los Angeles. Young Father Don Buro has great difficulty controlling the youngsters, especially trouble making ex-student Peo, and finds himself distracted by the attractive single mother of one of the boys.
Gennarino Laganà is a poor Sicilian who struggles with menial jobs to support his family, while his parents pressure him to seek his fortune in the North. Gennarino would never leave his beloved island if he had not stumbled into a love affair with Donna Egeria, wife of the Mafia boss Don Mimì. To escape certain revenge, he boards a goods train. In a dream, Saint Totino appears to him and promises him protection in exchange for a regulated life. He thus arrives in Milan, where he meets Armida, a woman of the streets, who takes him into her home and makes him her protector and lover. But San Totino appears again to Gennarino and reproaches him for being a kept man: he must work and Armida must change her life.
At work, Mario Millio is the only male nurse not on strike. At home, his wife is more interested in calling the hot-line of a local TV-doctor. When Mario wins 15 million Lire in the lottery, he buys himself a new car and starts to live out his dreams in secret. All goes well until a criminal steals the car and Mario is blamed for the car thief's crimes
In a school where the meeting seems more complete sampling of teachers and professors stupid airhead, there is the class of Peter, repeating in life, which is the "grandfather" to the far more young companions concerning jokes and vulgarity. Even outside the school walls, in the family or in the streets of the village where he lives, Peter is not far behind and his antics continue to freewheel.
A black-out occurs during the meeting of a gang of criminals. When the light is back one of them is found killed with a stab on his back and all the clues point to a penniless man who had an argument with the victim a short time before the murder.
Giulia love her young lover, an architect, that she'll do sexual favors for influential people to help him. Anna, the younger sister, returns from college and is abused by the architect. But she will not allow things to stay that way.
A man and his mistress have just taken off for a weekend romp when they're kidnapped by a trio of bank robbers. They wind up becoming media "stars" as police and reporters follow them. They all wind up at the beat-up shack of a cranky old codger, with the police surrounding them and the robbers threatening to kill everybody.
A bourgeois family man falls in love with an uninhibited hippie girl who just wants to have fun and enjoy a libertine lifestyle. She makes him suffer and gives herself to everybody but him. He is so madly in love with her that he even gets in trouble with the police.
Some youngsters rape and kill their teacher; but they won't tell their motivation. The police detective on the case feels some sinister influence behind the young murderers.