Catherine Birch works 15 hour days at a thankless job and lives alone in the apartment she used to share with her ex-girlfriend (who left her a year and a half ago). She hates Christmas and plans to spend the holiday alone, until her best friend Katie, who Catherine hasn't seen in two years, strong-arms her into spending Christmas with her and her family in the Highlands of Scotland. Circumstance beyond her control cause Catherine to miss her flight and she’s forced to catch a ride with Katie’s cousin-by-marriage, Holly, who’s also coming up from London to spend the holidays with them. Catherine is immediately attracted to Holly’s natural beauty and her warm, friendly personality, although she could do without Holly’s blaring Christmas music or her ugly Christmas sweaters.