A quirky woman who spends her free time as a pilot has her purse stolen; a mysterious man finds her wallet, and they embark on a peculiar romance. The film follows Marguerite Muir, played by Sabine Azéma, a single middle-aged dentist who meets Georges Palet, played by André Dussollier, an unemployed man who becomes infatuated with her after finding her stolen wallet. As their unlikely connection deepens, they share a love of aviation and embark on a series of adventures together, much to the amusement of those around them.