American playboy Bernard Lawrence is an architect based in Paris. He lives with his fiancée, TWA airline stewardess Gloria—and Lufthansa stewardess Gretchen—and Alitalia stewardess Gabriella. However, none of the women know about the other two, and this is exactly the way Bernard has designed it. This works just fine as long as their flight schedules only bring them home every three days. Bernard’s live-in maid, Berthe, is key in pulling off this ruse, managing three sets of clothing, photographs, bed linens, and food preferences.