在发现各自的另一半是兄妹后，这两个心怀怨恨的前恋人必须在同一屋檐下度过圣诞节，同时隐瞒他们的恋爱史。。A fledgling food critic (Carly Pope) agrees to visit a struggling restaurant if its chef (Bobby Cannavale) will date her meddling mother (Christine Baranski)。