Smart, stylish Marci Jewel is the owner of an up and coming ad agency and thrilled with her single life in New York. While all of her cousins are married and having babies, Marci remains the lone holdout in the large Chandler family clan. As the family's epic Christmas celebration is about to start, Marci promises to come home for the holidays for the first time in years. With a deadline looming for a new client, she drags her employee Adam in tow to Atlanta and does the only thing she can in the face of unbearable pressure from her family: fakes a fiance. While caught up in the family's frenetic holiday drama, Marci learns some unexpected lessons about love, trust and family, particularly when it comes to her new 'fianc'̌ and lifelong friends.