Newlyweds Antonio and Milly plan to move from their rustic hometown to Rome because Antonio’s posh uncles have offered him a job in their family’s business. The couple check into their hotel, and Milly decides to visit a salon before meeting Antonio's relatives for the first time. She becomes hopelessly lost and loses her cell phone, but ends up stumbling upon a film shoot where she meets Luca Salta, an actor whom she idolizes. He invites her to lunch. Back at the hotel, Antonio is worried that Milly has not returned in time for their lunch date with his aunts and uncles. Anna, a prostitute, then arrives, having mistakenly been sent to his room. Despite his protests, she wrestles him into a compromising position just as his relatives arrive; the only way he can think to save face is to introduce Anna as Milly, and he convinces her to pose as Milly for the day. The group goes to lunch at the same restaurant where Luca takes Milly. Antonio becomes jealous as Luca flirts with Milly, but they don't see him. Antonio’s uncles and aunts then take him to a fancy party. Antonio has nothing in common with the people to whom his uncles introduce him, but most of the male guests turn out to be Anna’s clients. Anna and Antonio go for a walk in the garden, and Antonio talks about how pure and good Milly is. When Anna finds out he was a virgin before he met Milly, she seduces him in the bushes. Meanwhile, Luca brings Milly to his hotel room and tries to seduce her. Milly decides to have sex with him, but then a gun-armed thief emerges from hiding and demands their valuables. Suddenly, Luca’s wife and a private investigator arrive. Milly and the thief climb into bed and fool Mrs. Salta into believing the hotel room is theirs while Luca hides in the bathroom. Once his wife has left, Luca runs off. The burglar flirts with Milly and she has sex with him instead. When she returns to the hotel room, she and Antonio decide to return to their rustic hometown—but first they begin to make love.
Leopoldo lives a mundane life with his wife and two children. The best part of his day is watching his boss’s beautiful secretary Serafina walk around the office. Inexplicably, he wakes up one morning to discover that he has become a national celebrity. Paparazzi document his every movement. Reporters ask him what he’s had for breakfast, if he wears boxers or briefs, whether he thinks it will rain. Leopoldo even becomes a manager at his company, and Serafina sleeps with him. He begins dating models and attending fancy film premieres. The constant attention wears on him, though. One day, in the middle of interviewing Leopoldo, the paparazzi spot a man “who looks more interesting,” and they abandon Leopoldo. At first, Leopoldo welcomes the return to his old life. But one afternoon he breaks down when no one asks for his autograph. Leopoldo has learned that life can be monotonous and wearying whether one is a celebrity or a normal man. Still, it’s much better to be a weary celebrity than it is to be a weary regular man.
John, a well-known architect, is visiting Rome with his wife and their friends. John lived there some thirty years ago, and he’d rather revisit his old haunts than go sightseeing with the others. While looking for his old apartment building, John meets Jack, an American architecture student who recognizes him. Jack happens to live in John's old building, and invites him up to the apartment he shares with his girlfriend Sally. (Throughout the rest of the story, John appears suddenly and inexplicably around Jack and makes unusually frank observations of events; reviewers have suggested that either John is an older mentor Jack imagines for himself, or John is reliving events from his past.) Sally tells Jack that she invited her best friend Monica, an actress, to stay with them while she recovers from a rough breakup. According to Sally, Monica gives off a sexual vibe that drives men crazy. John predicts Monica will bring trouble, but Jack can’t imagine why he would be attracted to his girlfriend’s best friend. Monica arrives, and one of her first conversations with Jack is about her intense sexual relationship with a female lingerie model. Because Sally has classes, she often asks Jack to show Monica around Rome. Monica impresses Jack with her knowledge of literature and art. Meanwhile, John keeps telling Jack that Monica will lead him to trouble and he criticizes her pseudo-intellectual facade. Even though John cautions Jack against cheating with Monica, he begins to succumb to her charms. Sally sets Monica up with one of their friends, and Jack is jealous of their relationship. One night he and Monica decide to cook dinner for Sally and for Monica's boyfriend. They flirt more and more until Jack kisses Monica; they go down to his car to have sex. Jack plans to leave Sally for Monica, but they decide Jack should wait until Sally finishes her midterms for Jack to break up with her. The trio go out for lunch after Sally’s exams, and when they’re alone Jack tells Monica he plans to dump Sally that night. They make plans to travel to Greece and Sicily together. Then Monica receives a phone call from her agent and learns she’s been offered a role in a Hollywood blockbuster. She will film in Los Angeles and Tokyo for the next four months and she immediately becomes completely focused on preparing for the role. She forgets about traveling with Jack, and he realizes how shallow she is. John and Jack walk back to the Roman street corner where they met and they part ways.