When Max Causey was six, he accidentally killed Santa. 12 years later, Max rectifies his mistake by resurrecting him, but soon realizes the creature he created is a bloodthirsty killer and it's headed right to his friend's Christmas party.

Follows Sara, head of the Toulouse police narcotics squad, who is forced to collaborate with Richard, the head of the local criminal police, to stop a go-fast between Spain and France and find the murderer linked to the case.