It takes him suddenly at 40 years: Frédéric wants a baby, Claire never wanted one and they agreed on that. He commits the unforgivable and makes a child behind her back. Claire turns into a whale and Frédéric becomes a doting father.
Nora, 26, is a graduate and still lives with her parents. While Nora has no field experience, she finds herself in charge of a 19-year-old boy, accused of having murdered a girl from his residence. From her first police custody to the follow-up of the instruction, Nora discovers the cruelty of the world around her, in her intimate and professional life. Soon, carried away by the frenzy of her new life, she multiplies the errors.
In 2023, Alexia, Tam and Sylia are reunited in the City of Light after many years apart. At the same time, a work of art that belonged to their father – who had died ten years earlier in a mysterious fire at his art gallery – reappears in a prestigious exhibition at the Eiffel Tower. The sisters decide to risk everything to steal the painting, in the hope that they will finally solve the mystery of what happened to their father.
