Miracle by Connie Willis

Miracle by Connie Willis (Asimov’s Science Fiction, December 1991) gets off to a leisurely start with some office chit-chat about Christmas between the protagonist, Lauren, and one of her office colleagues, Evie, and this lays out most of the elements that will feature in this tale: two of their co-workers, Scott Buckley (“too cute to ever notice someone like me”), and Fred Hatch (“the fat guy in documentation”), and the movies Miracle on 34th Street and It’s Wonderful Life.
The final character in this Unknown-like fantasy appears when Lauren gets home, and she is door-stepped by an irritating young man saying he is there to give her a Christmas Present. Despite her shutting the door on him twice, he appears in the apartment:

The young man was sitting on the couch, messing with her TV remote. “So, what do you want for Christmas? A yacht? A pony?” He punched buttons on the remote, frowning. “A new TV?”
“How did you get in here?” Lauren said squeakily. She looked at the door. The deadbolt and chain were both still on.
“I’m a spirit,” he said, putting the remote down. The TV suddenly blared on. “The Spirit of Christmas Present.”
“Oh,” Lauren said, edging toward the phone. “Like in A Christmas Carol.”
“No,” he said, flipping through the channels. She looked at the remote. It was still on the coffee table. “Not Christmas Present. Christmas Present. You know, Barbie dolls, ugly ties, cheese logs, the stuff people give you for Christmas.”
“Oh, Christmas Present. I see,” Lauren said, carefully picking up the phone.
“People always get me confused with him, which is really insulting. I mean, the guy obviously has a really high cholesterol level. Anyway, I’m the Spirit of Christmas Present, and your sister sent me to—”
Lauren had dialed nine one. She stopped, her finger poised over the second one. “My sister?”
“Yeah,” he said, staring at the TV. Jimmy Stewart was sitting in the guard’s room, wrapped in a blanket. “Oh, wow! It’s a Wonderful Life.”
My sister sent you, Lauren thought. It explained everything. He was not a Moonie or a serial killer. He was this year’s version of the crystal pyramid mate selector. “How do you know my sister?”
“She channeled me,” he said, leaning back against the sofa. “The Maharishi Ram Das was instructing her in trance-meditation, and she accidentally channeled my spirit out of the astral plane.” He pointed at the screen. “I love this part where the angel is trying to convince Jimmy Stewart he’s dead.” pp. 143-144

After this he tells her that he is there is give what she really wants for Christmas, “her heart’s desire”, before going on to criticise her computer addressed cards, store wrapped presents, etc. Then he disappears, along with her cards, and leaves a Christmas tree growing out of her kitchen floor.
The rest of the story sees Lauren recruit Frank to help her deal with her spirit problem, and the two of them work together to try and get rid of him, as well as cope with various other changes Chris the spirit makes, such as Lauren’s off-the-shoulder black party dress—bought to impress Scott—being changed into a Yanomano Indian costume (Frank helpfully suggests she could wear last year’s pretty red number).
At this point (spoiler) I could see that Lauren was going to end up with Frank and not Scott, and so it materialises (dates with Scott are thwarted by Chris, Frank and Lauren have to come up with last minute gifts for everyone at the office when only Office Depot is open, Fred arrives at the party with the cheese puffs Lauren was meant to bring, Evie arrives wearing the black dress, etc., etc.). Finally, Chris arrives at the party dressed as Santa Claus.
This is an entertaining fantasy rom-com that gets off to a very good start, but I thought it tailed off towards the end (I’m not sure if this is because of pacing/padding problems, or because I guessed where it was going). I also thought that the two movies are referenced too much—but this is maybe a function of describing enough about them to those who aren’t familiar with them. Overall, though, not bad.
***+ (Good to Very Good, or, more accurately, Very Good to Good). 14,000 words.