四喜临门

布拉德（文斯·沃恩 Vince Vaughn 饰）与女友凯特（瑞茜·威瑟斯彭 Reese Witherspoon 饰）的生活就像普通夫妻一样，唯一的不同就是他们未婚也没有孩子，然而他们却比一般夫妻要多出一个头疼的问题，那就是双方父母均已离异并各过各的，于是每年圣诞节小两口便要分别去拜访四位家长，实乃分身乏术。前两年，布拉德和凯特都很侥幸地以公事借口躲过了繁杂的家庭聚会，双双飞往热带欢度跨年。然而今年却没那么顺利了，航班因大雾天气全部取消，小两口去不成度假，反而还无意被拍到并放上了电视新闻。逃离计划泡汤，两人只好在一天内奔走于双方父母的圣诞聚会，一路上不仅连走带跑，四个家庭也没让他们省心，哭笑不得的闹剧层出不穷……Brad and Kate have been together three years, in love, having fun, doing all sorts of things together with no intention of marriage or children. Christmas morning, they're on their way to Fiji, having told their two sets of divorced parents that they're off to do charity work. Through a fluke, they have no choice but to visit each of their four idiosyncratic parents. As the day progresses, Brad and Kate remember growing up, each learns more about the other, and Kate realizes that her life may not be as good as it could be. Do they know each other well enough to weather the storms families bring?