Italy, 1968. Aspiring actor Nicola enrolls in the police to pay for his studies, ending up undercover among college students protesting the government, the Vietnam War and the values of their parents' generation. However, he complicates his mission by falling for Laura, a bourgeois girl dreaming of a better world.

Nicola, paralyzed after a car crash, falls in love for his physiotherapist Lucia. Franco and Manuela, a young couple unfit to have children, fly to Barcelona for a specialized treatment for fertility. Filippo and Fosco, two gay men, decide to marry. Ernesto, waiter in a chic restaurant, has a liaison with Cecilia, the new Spanish help.