During Christmas, a family rents a lodge but run into a couple of Yeti. 

The title comes from a documentary I saw about a Yeti, and one's name is homage to the Abominable Snowman in the Rudolph The Red-Nosed Reindeer special. 

SYNOPSIS:

YULETIDE YETI

The Anderson family Jake, Rebecca, Ben, Sarah, and Karen rent a cabin for Christmas, meanwhile a skier is chased by a mysterious beast and killed while another forges for food in another area. The Andersons arrive at the cabin and settle in meanwhile the creature revealed to be a Yeti spies on them. Meanwhile Ben makes friends with Nicole Sallen a singer who is preforming at the lodge where the Anderson’s rented the cabin and her agent tries to exploit a phony relationship; she has with a popular socialite named Colton for profit.

Meanwhile Ben and his sisters start to notice a few odd things, and Jake and Rebecca also take notice of something alarming, when the Yeti starts to stalk and attack the Anderson cabin more often. The Anderson’s use cameras to film the attacks but are damaged by the Yeti who appears for a few minutes, meanwhile Karen goes out on her own and is separated and meets an injured Yeti and helps and befriends the creature and names it Bumble.

Soon Jake and Ben see the killer Yeti and flee as it nearly kills them, retreating to the cabin they try to alert the owner/manager Alden Dale but are dismissed, Ben and Sarah find out it’s heading to a concert where Nicole is and try to warn her, but she dismisses them. But before the show finds Colton cheating on her and reveals he was just using her for his image. Heartbroken but still doing the show at the urging of her agent and Colton the Yeti attacks and Colton is killed. The Agent flees like a coward, but Ben manages to save Nicole, and they retreat to the cabin with other survivors.

Boarding inside Jake and Rebecca realize the Yeti is after food and sees the usual food source diminished but is now aggressive and feeling territorial. The Yeti tries to break in, but Ben, Nicole and Sarah slip out to find Karen who snuck out to find Bumble. They find her, learn about Bumble, and alert the parents. Jake and Rebecca try to sneak everyone out but the Yeti breaks in and kills a few people, and Ben, Nicole, Sarah arrive with Karen in the car and as they help Bumble hides and sees Karen being threatened by the killer Yeti and arrives in time to fight the killer Yeti and Jake helps and the killer Yeti is killed and falls into the river and disappears, Bumble is treated for his injuries and is allowed to return to the wilderness. When Nicole’s manager arrives with authorities, they find the owner Alden killed, and the Agent wishes to exploit this incident they all turn on him, and Nicole fires him and hires Rebecca as her new agent and manager. Everyone has a good Christmas, with Bumble as their Yuletide Yeti, while Ben and Nicole become a couple.