Sarah is a French astronaut training at the European Space Agency in Cologne. She is the only woman in the arduous program. She lives alone with Stella, her seven year old daughter. Sarah feels guilty that she cannot spend more time with her child. Her love is overpowering, unsettling. When Sarah is chosen to join the crew of a year-long space mission called Proxima, it creates chaos in the mother-daughter relationship.

Forty-year-old Paul-André is a timid, rather introverted man. Rich but alone, he is deeply bored and ends up concluding that what he needs is a family. Violette, a forty-year-old full of energy, is threatened with eviction and is afraid she’ll lose custody of her two children. Paul-André then proposes a totally above the board contract to rent the family in exchange for him paying off Violette’s debts. For better and for worse..

Two sisters, their families, and sometimes complicated lives.