The film explores the story of French private investigator named Claude Chavasse. in this film, Claude try to discover his client's wife has been having an affair with an American playboy called Frank Flannagan. It seems that Claude is hired to entrap Frank but he will be surprised when his daughter falls for Frank by another way.
Though not as charming or touching as Sabrina, Wilder's 1957 romantic comedy teams Gary Cooper and Audrey Hepburn and serves as a good star vehicle for both.
It's quite long, Hepburn sports one of her worst hairstyles, and Cooper and Hepburn's glaring age difference (28 years) is distracting, but this is a wonderful, charming romantic comedy nonetheless.
Love in the Afternoon had great locations going for it. It also had the winsome charm of Hepburn, the elfin puckishness of Chevalier, a literate script by Wilder and Diamond, and an airy feeling that wafted the audience along.