[1][2] Sergio Benvenuti (Carlo Verdone) is a meek and timid young man who works as a door-to-door salesman; naturally, his disposition makes incredibly hard for him to convince potential customers to subscribe to the offers he peddles.
Due to a mishap Sergio reaches alone the abode of a colorful, over-the-top character, who introduces himself as 'Manuel Fantoni' and entertains him with tall tales about his incredible life and his intimate acquaintance with lots of Italian and American celebrities.
Oblivious of the appointment with the belated Nadia, Sergio is fascinated by Manuel's stories and spend the day listening to him, and believing everything, until the sudden arrival of the police to arrest the strange character.
Giuseppe of course laughs at Sergio's request, and reveals that all the signed photos in his apartment, including Lucio Dalla's, aren't evidence of any special familiarity within the show business in general or with that singer in particular.
In the end a romantic dinner with Nadia is crashed by the thunderous arrival of Augusto and Rossella at Cesare's apartment, which culminates in Sergio's savage beating during which his true identity is revealed to both women.