After several Catholic school pupils are murdered, a teacher who is having an affair with one of his students becomes a suspect. When other gruesome murders start occurring shortly thereafter, the teacher suspects that he may be the cause of them.
A series of random suicides in Rome, Italy are attributed to a heatwave, but a young pathologist named Simona—who is working on a thesis about murders disguised as suicides—suspects otherwise. When a young girl associated with Simona's playboy father ends up dead in another apparent suicide, Simona teams up with the girl's priest brother to prove she was murdered and track down the unknown serial killer.
Cliff works as a narcotics investigator for the police and infiltrate a mafia gang. Soon it turns out that Cliff has bigger plans than just to bust bad guys.
The film, set almost entirely in New York, tells of the life of some young people of the late Sixties: of the use they make of various drugs, including the terrible LSD, of their sex life and their freedom of costume and thought.
In the figure of Ettore Zambrini, a small industrialist with a dream of opening a factory overlooking the Autostrada del Sole, Montaldo offers us an effective narrative transposition of the 'animal spirits' that governed the economic boom in Italy at the time. He is a character of contradictory humanity: capable of handling business, overdue bills, trade union relations, marital betrayal, but also the passion that binds him to his wife with equal unscrupulousness.
Hélène, an antique dealer and her husband Georges, a respected doctor, live in a beautiful property and gives everyone the image of conjugal happiness. The children, Daniel and Nadine, are busy with their studies and their loves. The bourgeois life of Hélène is troubled by the murder of her lover, Philippe, a friend of her son. She finds the body when she goes to one of their appointments. In shock, she still thinks to take away the address book of the victim where her name appears - object compromising for her marriage. The police are interested in her. A stranger blackmails her. She is caught in a gear that she can not get out of. She then suspects that all is a revenge from her husband.
Franco is abandoned by his wife and daughter who wrongly accuse him of being a wimp. Besides he's bossed around and sexually harassed at work. He decides to take justice into his own hands and get rough with the world. He soon gets his family's respect back.
Study of a man whose basic sense of inferiority leads him from worse to worse.
