Tracy imagined otherwise student life in New York. But the deception give way to enthusiasm when he meets Brooke, his future stepsister. Shy and solitary Tracy has the opportunity to spend time in the company of a woman older than herself who seems to live the dream. Eccentric, Brooke proves to be a true dreamer. His biggest dream, which is to open a restaurant in Brooklyn, seems very distant. Passionate about writing and inspired by Brooke, Tracy begins writing a new novel whose main character is none other than Brooke, entitled “Mistress America”. The novel will have an unexpected conclusion when the latter leads to a rich friend hoping to get hold of the money the restaurant’s opening.