Twenty years after the disappearance of her daughter, a recovering alcoholic is preparing to host her family's Christmas celebration when her estranged ex-bother-in-law arrives unannounced, bearing nostalgic gifts and a heavy secret.
39岁的布伦南?哈夫（威尔?法瑞尔 Will Ferrell 饰）无业，一直在母亲南希（玛丽?斯汀伯根 Mary Steenburgen 饰）家蹭吃蹭住。40岁的戴尔?多巴克（约翰?赖利 John Reilly 饰）也是个与父亲罗伯特（理查德?詹金斯 Richard Jenkins 饰）住在一起的大龄男，靠父亲的接济生活。南希与罗伯特一见钟情，婚后搬入罗伯特家居住，布伦南也随母亲一起搬…
