After their father passes away, four grown siblings are forced to return to their childhood home and live under the same roof for a week, along with their over-sharing mother and an assortment of spouses, exes, and might-have-beens.
An uptight, liberal businesswoman accompanies her boyfriend to his eccentric and outgoing family's annual Christmas celebration and finds that she's a fish out of water in their free-spirited way of life.
The intertwined stories of four generations of Coopers unfold right before the annual family reunion on Christmas Eve. Can they survive the most beautiful time of the year?