The voice actor Sandro Giacomelli (Gigi Proietti), a year after he reported his son Luca in Italy, is now a step away from a new marriage to Francesca (after four years of living together), the day scheduled for the wedding the woman gives birth a little girl named Valeria. Luke from the beginning is very jealous of her sister so she decides to join his mother Nathalie in Paris in the summer, even with the father's consent. Luke, however, once in France, establishes a bad relationship with Jean-Paul, the new husband of the mother, so the child called his father Sandro because the run after. Nathalie and her husband resort to law to have custody of the child. Meanwhile Sandro loses his job as a voice actor and is forced to do the valet; also established a relationship with a theater director and for this reason the companion Francesca will drive him home. Fortunately Carlo (Andrea Giordana), after returning to live in Italy, home to Sandro and Luca at home.