A young American, Winterbourne, who has lived in Europe for many years and has managed to break the habit of American customs, arrives in the small Swiss town of Vevey to see his aunt. At the hotel, he accidentally meets a wealthy American Miller family - a nine-year-old boy, his older sister and their mother. They travel around Europe accompanied by their agent and are going to go to Italy. The girl - Daisy Miller - amazes Winterbourne with her beauty, as well as free and laid-back behavior, which is not accepted in Europe. He is trying to understand what is behind this strange behavior from a generally accepted point of view? He finds Daisy's definition: a pretty windy American, and rejoices that he has found a good formula.
