Donner Thomas has been put into a mental hospital a few days before Christmas after a minor head injury has him seeing magical creatures; Elves, Fairies, Trolls, etc, masquerading as regular human beings. His suspicions are pleasantly confirmed when he meets his new roommate two weeks before Christmas, the gorgeous Bran O'Byrne.
Bran is one of Santa's Elves. In human guise, Bran gets piss-drunk the night before he is supposed to travel to the North Pole (they don't all live in the north!), brags about being an Elf to the wrong people, and now he's been placed in lock-down for 72 hours of observations. If he doesn't get to the next transport window by morning, he'll lose his job at Santa's shop, and there just isn't much he's good at other than looking good and making toys.
Sparks fly when these two meet, and they are fated to an encounter neither one of them will ever forget.