With her twins in college and her ex-husband off to a younger pasture, Cassie is resigned to a disappointing life in Los Angeles, until she reluctantly returns to Paris to visit her ailing father.
There, she discovers the existence of an estranged aunt, a woman of many secrets who lives in a beautiful house in Paris's exclusive Cit des Fleurs.
Dumbfounded by what she learns, Cassie sets out on a quest to understand her family's past and make sense of her father's cold indifference toward her.