Alec Guinness plays Sir Edgar Fraser, a widowed Scottish aristocrat who decides that it is time to introduce his 20-year-old son to the opposite sex. This, he decides, must be done in Paris, the most romantic city in the world. So off they go, and Sir Edgar is determined to find a beautiful, spirited girl for his son. This he does, but complications arise when he finds himself falling for her. Matters become even more tangled when his son falls in love with the woman he has found for his father.