Antonio Gerini

Orazio Menicotti is a night policeman in Rome. One night he is present at a quarrel between husband and wife and he volunteers to take the wife to the Police Station. While he goes around Rome with the blonde and beautiful woman, a bank is robbed.

Adolfo Cocchi has a building firm but his plan to build a set of buildings is been stopped by an old former Garibaldian, Don Leopoldo, who refuses to sell his property. A group of young people go to his house to play and sing. Marcella, Cocchi's daughter, who has a beautiful voice, goes to visit Leopoldo and falls in love with Paolo. They have an idea: open a night-club called "Io bacio... tu baci"...

L'adultère ravage Brescia. Mais Andrea Artusi qui dirige une grande usine de chapeaux, pense être à l'abri des rumeurs et il est sûr de la fidélité de sa femme, la belle Maria Grazia. Ils vivent ainsi dans la paix et le confort bourgeois. Hélas, un soir il ne peut résister au charme de la séduisante Cristina la femme du Président du syndicat des chapeliers et commet une brève aventure avec elle. Soudain le doute s'empare de lui et il ne cesse de se demander si sa femme le trompe également. La jalousie ne le quitte plus. Il élabore des fantasmes de plus en plus délirants dans lesquels Maria lui est infidèle.