Paris. 10 days before Christmas. Line, 13, decides to pretend to be her father Harold, a romantic and nostalgic bachelor, on a dating site to find him a soul mate. She meets the ideal candidate: Chloé. What Line does not know is that she is actually talking to Jules, also 13, who pretended to be her mother Chloé who no longer believes in love. What the two kids also don't know is that Harold and Chloe work together in the same chocolate business...and they can't stand each other. How will Line and Jules get out of this imbroglio? How will Harold and Chloe react when they learn of their children's schemes? And above all, will the magic of Christmas work?