Krampus is a 2015 Christmas comedy horror film based on the eponymous character from Austro-Bavarian folklore, directed by Michael Dougherty, who co-wrote with Todd Casey and Zach Shields. The film stars Adam Scott, Toni Collette, David Koechner, Allison Tolman, Conchata Ferrell, Emjay Anthony, Stefania LaVie Owen, with Krista Stadler, and introducing Lolo Owen, Queenie Samuel, Maverick Flack, and Sage Hunefeld in their film debuts. It tells the story of a dysfunctional family squabbling causing a young boy (Max) to lose his festive spirit enough to unleash the wrath of Krampus, a fearsome, horned demonic beast in ancient European folklore who punishes naughty children at Christmas time.

Plot

Three days before Christmas, the Engel family—parents Tom and Sarah, daughter Beth, son Max, and Tom's mother, whom the family calls Omi—prepare for the holidays. Despite his family's dysfunction, Max still believes in Santa Claus and writes him a letter with Tom's mother's encouragement. Sarah's sister Linda brings her family and bulldog Rosie to come visit and stay for the holiday, along with their cantankerous Aunt Dorothy. This fuels tension, as Tom hates Linda's husband Howard, and Linda's children Stevie, Jordan and Howie Jr. don't get along with Max or Beth.