Characters
Bernard – a Parisian architect and lothario
Bertha – Bernard's Housekeeper
Robert – Bernard's old schoolchum
Gabriella – the Italian fiancée
Gloria – the American fiancée
Gretchen – the German fiancée
Bernard, a successful Parisian architect, juggles three flight attendant fiancées: an American (Gloria), an Italian (Gabriella) and a German (Gretchen). He tracks their airlines' timetables, and his long-suffering housekeeper, Bertha, reluctantly resets the menus and bedroom decor depending on the arrivals and departures. Bernard has been successful at convincing each girl that she is the only one. Bernard's old school friend Robert arrives unexpectedly, and Bernard proudly explains to his wide-eyed visitor how he makes his busy romantic schedule run smoothly. He also has a fallback plan for keeping his fiancées separate, involving his country house. Unfortunately for Bernard, a new, faster Boeing jet has been introduced, changing the timetable. Weather delays occur, and complications arise when the girls' behavior does not match Bernard's careful planning.
Robert steps in to help Bernard by keeping one or more of the girls busy as they arrive ahead of (or behind) schedule. It becomes more and more difficult for Bernard, Bertha and Robert to keep the girls separate once they all arrive, and the lies told become more and more difficult to reconcile. Bertha is exhausted and threatens to quit. Eventually, the situation is combed out, with Robert becoming involved with the forceful Gretchen, Bernard keeping the feisty Gabriella, and the independent Gloria leaving to find a more pliable husband.
The plot runs parallel to the comedy film The Captain's Paradise (1953), where the protagonist is a seafaring captain (Alec Guinness) pursuing many affairs.

Source: Wikipedia