In Slay Belles, the cosplaying trio consists of three friends named Alexi, Dahlia, and Sadie. The girls decide to explore an abandoned amusement park on Christmas Eve as part of a social media scavenger hunt challenge. However, their fun adventure takes a deadly turn as they accidentally awaken Krampus, a legendary evil creature known for punishing naughty children during the holidays.
Krampus begins to wreak havoc on the entire town, causing chaos and destruction wherever he goes. The girls soon find themselves pursued by the beast, and in their attempt to escape, they stumble upon Santa Claus, who has also come to town to try and stop Krampus from causing more damage.
With time running out, the girls and Santa Claus team up to try and defeat Krampus once and for all. Along the way, they encounter other unique characters, including a group of punk rock carolers and a mysterious woman who claims to have the key to defeating Krampus.
Will the cosplaying trio and Santa Claus be able to save the town and stop Krampus from his holiday killing spree? Watch Slay Belles to find out.