In this holiday horror comedy, Bill moves his American wife Carol and children Nora and Lucas to Norway where he's inherited a family estate. While Bill dreams of turning the adjourning barn into a bed and breakfast, his family struggles to adapt to Scandinavian life. Lucas discovers a mischievous barn elf from ancient folklore living in the barn with a set of rules the family must follow. When Bill dismisses Lucas's warnings and fails to follow sacred holiday traditions, the elf plots to get rid of the American intruders at any cost.