Pauline juggles life between her kids and her work as a landscape designer where she has to fight for her place amongst her male colleagues. Her life is turned upside-down when her mother tells her that she is going to live abroad and will no longer be able to take care of her children, then becomes chaotic when she is appointed manager of an important project. On all fronts, her life takes a turn for the worse.
Mathieu is a marine biologist. He spends his time on his microscope, cutting tiny marine organisms corpses. He’s unhappy. His true wish would have been being on the sea. But an event will abruptly change his life : Christine, his mother in law, runs away. Attracted by this impulsion, and curious to understand her, Mathieu starts looking for her. He’s going to find her in a house by the sea and will share the same desire of regaining control of his life.