Céleste, la trentaine, n'a toujours pas rencontré le grand amour. Un jour, sur un coup de tête, elle décide d'enlever l'homme qu'elle croit idéal, forçant au passage Rosalie, sa soeur cadette, à la suivre dans sa combine. Mais dans la panique, Céleste va se tromper d'homme...
Agathe is turning 30 and has finished her thesis on secret societies in France. A young woman is found dead in the Seine, murdered for a specific ritual. She is an image of Agathe, has the same first name and is similarly dressed. The traces lead to one of the secret societies this included in Agathe's study.
Marion lives alone with her 15-year-old son, Sébastien. Enrolled in an expensive private school, he does not give complete satisfaction to his mother, who bleeds to pay for his studies. A medical secretary, she is fired without warning by her boss. When her neighbor and friend, Claudie, also in financial difficulty, receives a visit from a bailiff, they decide to change their lives.
