Paris becomes the stage for a playful exploration of class, romance, and loyalty as a visiting American senator pushes to restrain enlisted service members from the city, while the daughter of the United States Ambassador to France decides to test that rule in a most human way. Senator Jonathan Carwright [Adolphe Menjou] wants Paris to stay off-limits to the men in uniform, but Joan Fisk [Olivia de Havilland], the ambassador’s daughter, aims to prove that American servicemen can be true gentlemen by dating one of them without exposing her lofty status. The social tension is set against a backdrop of glittering cabarets, grand ambitions, and the endless charm of Paris.
Sgt. Danny Sullivan [John Forsythe] becomes Joan’s guide to the city’s vibrant nightlife, taking her from bright nightclub cabarets to a lighthearted ascent up the Eiffel Tower. Throughout these excursions, he privately believes she is a Dior fashion model, a glamorous impression that keeps him bewitched by her mystery even as he tries to understand her better. His posture is consistently respectful and affectionate, even as misunderstandings about her identity begin to take shape.
Behind the scenes, Private First Class Al O’Connor [Tommy Noonan], a plainspoken friend and a guest in the Ambassador’s household, keeps a wary eye on the situation. He is eager to alert Sullivan to Joan’s true identity and place in the social web around the Ambassador and other top brass, including the Ambassador William Fisk [Edward Arnold] and the ever-watchful Mrs. Cartwright [Myrna Loy], but the circle’s secrecy creates a barrier that O’Connor cannot easily breech. The atmosphere is thick with the unease of potential scandal, even as these relationships promise something gentler and truer than the rules would allow.
When Sullivan drops by a Dior fashion show to search for Joan, he discovers a startling truth: the staff has never heard of her. He watches Joan observe the show alongside her father’s friend, Senator Carwright [Adolphe Menjou], and in that moment he jumps to the conclusion that she must have a powerful sponsor—a sugar daddy who shapes her every move. The moment is charged with irony: a woman who seeks nothing more than a chance to be seen as an equal is mistaken for someone who basks in privilege.
The plot thickens during a later dinner gathering. After a clumsy spill of wine, Sullivan naturally offers to take Joan to his hotel room, a gesture he believes to be honorable, yet the action triggers a painful misunderstanding. Joan leaves him at the height of their budding connection, and the rift widens as the couple’s true identities remain in question. The tension between their worlds—Joan’s social standing and Sullivan’s military authenticity—persists, underscoring how fragile trust can be when appearances are all that remain.
The story pivots toward a shared revelation at the ballet. By pure happenstance, the Ambassador’s family and Sullivan’s circle end up at the same Swan Lake performance. During the intermission, the disparate threads of misidentification and secrecy unwind, and the truth about Joan’s identity comes to light. With the fog of misunderstanding cleared, the characters begin to see one another more clearly, and the potential for a genuine connection between Sullivan and Joan emerges. The film closes on a note of renewed possibility, where love and courtesy triumph over preconceptions, and the relationship that began as a test of social boundaries finds its own natural footing in mutual respect and affection.
