A young man has a renewed interest in his girlfriend when he takes a job that separates the two.

Luciana, a country girl who has moved to Milan, is married to Mario, an intellectual type who avoids her since an accident forced him to live with his torso permanently in a cast. Lonely and depressed because also of her recent dismissal, she asks for help through a letter and becomes friends with elementary school teacher Anna, who also resents the negativity of her workplace and the world around her. Meanwhile, blue collar worker Marco waits for his fellow paisan Luciana to reciprocate his feelings. The vicissitudes of this quartet intertwine with the comical interludes of a commune of hippies who live in the tunnels of the Milan subway and spend their time pulling pranks on the passers-by.

Isaac has separated parents, attends third grade, and soon befriends two classmates, Fiorello and Gabriel. All three want to leave with the circus, but on the appointed day, Gabriel is assigned by his mother to take care of his newborn sister, Fiorello hears his brother's recommendation of his parents, and Isaac sees his daddy coming off the train.

Gianna is a theater actress who tries to stage a show, but meanwhile she has to take care of her elderly mother.

Commissario Paolo Ferro (Maurizio Merli) stars as a (typical) tough cop again. This time he returns to the city of Milan to go after a murder corporation. Acampora (Mario Merola) is believed to be the prime suspect although he later proves to be one of the mafia's targets. As if all that wasn't enough, Paolo has to face his own nephew who seems to be involved in all sorts of dirty business.