For their annual Christmas Eve celebration, Sam Cooper (John Goodman) and his wife Charlotte (Diane Keaton) welcome four generations of extended family, including son Hank (Ed Helms), daughter Eleanor (Olivia Wilde) and Charlotte's father, Bucky (Alan Arkin). Sam and Charlotte are separating after 40 years of marriage, while Hank is in the middle of a divorce. As the guests reveal their respective problems, they also rediscover the importance of kinship and the spirit of the holiday.