Esther Williams the movie star is searching for a girl to play her sister in a new film. When she spots Sally, she says, "That's her . . . That's the girl I want!"
Sally has a vivid imagination and constantly makes up stories. In her head she is the star of countless spectacular movies.
But when her close-knit family are separated because of her brother's illness, Sally's daydreams are not enough to comfort her. With her father left behind in New Jersey, a winter in the Florida sunshine seems gloomy, and the cramped and dingy flat can't compare with her comfortable home.
Worst of all, it is 1947 and Sally is convinced that Adolf Hitler is alive and living in Miami Beach . . .