Audrey and her three siblings are abandoned in an old house, where they were supposed to spend the summer vacations with their father, but he unexpectedly disappears during the night.

Jules, 18 years old, reluctantly spends his holidays in the naturist campsite of his childhood. He is torn between his attraction for the beautiful Karim, a seasonal worker on the textile beach, and the depression of his mother Adèle, who refuses to let him grow up.

In 1955, 60-year-old Marcel Pagnol is a well-known and acclaimed playwright and filmmaker. When the editor-in-chief of ELLE magazine commissions a weekly column about Pagnol's childhood, he sees this as a great opportunity to go back to his artistic roots: writing. Realizing his memory is failing him and deeply affected by the disappointing results of his last two plays, Pagnol starts doubting his ability to pursue his work. That is until Little Marcel - the young boy he used to be - appears to him as if by magic. Together, they will explore Marcel Pagnol's incredible life and bring back to life his most cherished encounters and memories...