American young woman Reggie Lambert (Audrey Hepburn) comes across a man who calls himself Peter Joshua (Gary Grant Gary Grant) at the Medvedev Ski Resort in France. Reggie returned to Paris and found her home ransacked and her husband Charles killed. Reggie is summoned by the US embassy to meet CIA agent Hamilton (Walter Matthew Walter Matthau), only to discover that the three strangers who appeared at Charles' funeral were his companions who embezzled gold during World War II: Tex (James Cobain James Coburn), Herman (George Kennedy George Kennedy) and Leopold (Ned Glass Ned Glass). Hamilton asked Reggie to help the government find the missing gold, and three geeks chased Reggie. Pete suddenly appeared to save the beauty in an emergency. Just when Reggie fell in love, the three strangers were killed one after another, pointing at the unpredictable identity of Peter, Reggie also fell into an unprecedented crisis. Gary Grant and Audrey Hepburn were nominated for Best Actor and Actor at the Golden Globes for this film. Audrey Hepburn won a British film.