The film features a notable cast of Italian comedy regulars: : Gilberto Rovai Marjo Berasategui : Margherita Giulia Elettra Gorietti : Paolina Giorgio Panariello : Cateno Rovai, Gilberto's brother Massimo Ceccherini : Father Massimo Rocco Papaleo : Professor Anselmi

Directed by and starring Leonardo Pieraccioni, the film follows Gilberto Rovai, a high school physical education teacher in Pistoia. The story begins with a disastrous surprise party where Gilberto discovers his wife’s infidelity, leading to their divorce.

The screenplay was co-written by Giovanni Veronesi, a frequent collaborator of Pieraccioni.

The plot thickens a year later when one of his students, 16-year-old Paolina, becomes infatuated with him. She begins leaving him love notes in various languages—the titular "I love you in all the languages of the world". Complications arise when Gilberto falls for Margherita, an animal psychologist at the local zoo, only to discover she is Paolina’s mother.