Five years after ASK Agency closed, debut director Andréa loses her lead actor just days before filming and reunited with her old team — for better or worse.

On Christmas Eve, Greg, a solitary and taciturn police officer, doesn't hesitate to leave his daughter behind to go on a mission. To teach him a lesson, Santa Claus decides to grant his daughter's wish: that her father looks like Richard Silestone, the good-natured and heavily indebted family man from the beloved Christmas movie she adores. While Greg is sent into this improbable world, Richard accidentally lands in the real world and both men realize they have no choice but to complete each other's missions to reclaim their respective lives.