Every Christmas, without fail, Jackie sends a boastful holiday newsletter that makes her old college friend Charlotte feel like a lump of coal. When a twist of fate lands Charlotte, her husband Rob, and their family on Jackie and her husband Valentino's snowy doorstep just days before Christmas, Charlotte seizes the opportunity to prove that her old friend's "perfect" life can't possibly be that perfect. But in her overzealous attempt to expose Jackie, Charlotte nearly ruins Christmas for both families and must team up with her old friend to reassemble the pieces.