Build a movie plot around this: Reggie falls in love with whom? Dyle
Regina "Reggie" Lampert (Audrey Hepburn), tells her friend Sylvie Gaudel (Dominique Minot) while on a skiing holiday that she has decided to divorce her husband Charles. She then meets a charming American stranger, Peter Joshua (Cary Grant). On her return to Paris, she finds her apartment is completely empty and police inspector Edouard Grandpierre (Jacques Marin) notifies her that Charles has been murdered while leaving Paris. Reggie is given her husband's travel bag, containing a letter addressed to her, a ticket to Venezuela, passports in multiple names and other items. At the funeral, three odd characters show up to view the body.Reggie is summoned to meet CIA administrator Hamilton Bartholomew (Walter Matthau) at the U.S. Embassy. She learns that the three men are Tex Panthollow (James Coburn), Herman Scobie (George Kennedy), and Leopold W. Gideon (Ned Glass), the three survivors of a World War II OSS operation. Together with Charles and a fifth man, Carson Dyle, they were to deliver $250,000 in gold to the French Resistance, but they stole it instead. Dyle was fatally wounded in a German ambush, and Charles double-crossed the others and took all the gold. The three men want the missing money, and the U.S. government wants it back. Bartholomew insists that Reggie has it, even if she does not know where it is.Peter tracks Reggie down and helps her move into a hotel. The three criminals separately threaten Reggie, each convinced that she knows where the money is. Scobie then shocks Reggie by claiming that Peter is in league with the trio, after which Peter confesses to her that he is really Carson Dyle's brother, Alexander, and is convinced that the others murdered Carson.As the hunt for the money continues, first Scobie is found murdered, then Gideon is killed in an elevator. Meanwhile, Reggie falls in love with Dyle, but gets yet another shock when she learns from Bartholomew that Carson Dyle had no brother. Confronted with this, Alexander now admits he is actually Adam Canfield, a professional thief....