Last Christmas (A Nikki Ashburne Short Story) - Uncollected Anthology, #23

Former Hollywood party girl Nikki Ashburne sees ghosts. In fact, many of them are her friends. Okay, they're kind of her only friends. But when four 1980s British partiers disrupt her family's Alpine Christmas-a holiday already fraught with tension-Nikki must play mediator, otherwise for someone, it might be their last Christmas. Another story in the popular Nikki Ashburne urban fantasy series. Come for the ghosts.
Stay for the snark. "Last Christmas" is part of Uncollected Anthology, Volume 23: Supernatural Soirees.