Paris, 2014: The sound engineer and DJ Céline is expecting her first child - but she is not pregnant. In a few months, her wife Nadia will give birth to a daughter. While Nadia works in the dental emergency service between nausea and shortness of breath, Céline practices baby handling on the children of a colleague. This chaos is soon to become their everyday life? Despite marriage for all, Céline has to prove to the state with 15 personal letters from friends and family that she loves her child and is up to her role in order to be legally considered his mother. As a pioneer, she must first fight for her place before the law and in the eyes of others - and at the same time make peace with her mother, who always went her own way. A refreshingly different story about becoming a parent - driving, hilarious and brilliantly acted.