Ashley Leroy is the first french football player to ever win the Ballon d'or. To put and end to her successful career, she decides to play at En Avant Guingamp. But, after a great first season, the next one is complicated. Unable to score a single goal, the press says she's too old and the club's president want to transfer her. Then, during the few weeks before Christmas, Ashley will leave for a journey and meet someone inexpected.

Caroline Jeune, a gendarme captain, takes on her first murder. An 18-year-old Kurdish woman, Sabrya, was murdered on her way home from the choir she sang in.