The Dupin sisters are almost complete opposites. Blonde, worldly, narcissistic, Iris marries a rich lawyer to support her bourgeois existence. Introverted, intellectual, mistreated by those around her, Josephine supports her unemployed, cheating husband. When she decides to throw him out, she finds herself alone with the bills. But Iris, who’s looking for a new meaning in life, has a proposition for her: Josephine should use her talents to secretly write a novel for her. A book that will make a star out of one of the sisters, while solving the financial problems of the other...

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