Lois Ames is devoted to her job as the editor of a magazine, and her wealthy husband Fred is equally dedicated to polo and parties. Lois's long hours drive her secretary to quit, and she replaces her with Tom Sheridan, who happens to be in the office demonstrating a rowing machine. Tom likes the work and continues to advance until he is indispensable to Lois. Ruth Holman, Tom's fiancée, is jealous of Tom's relationship with Lois and with some reason, as he is falling in love with her. In the meantime, Fred is having an affair with Ann Le Maire, a woman whose interests are closer to his own. Because he feels his love for Lois is hopeless, Tom quits his job and plans his marriage to Ruth. Lois tries to patch things up with Fred, but he suggests that they divorce instead. On Tom's last night, Lois keeps him working late. Ruth is furious and storms up to the office where Lois and Tom are dining. She threatens to tell Lois's husband about their relationship, which leaves the way clear for Lois to announce her pending divorce. Ruth breaks off her engagement to Tom, and he immediately asks Lois to marry him.
卡罗尔（詹妮弗·安妮斯顿 Jennifer Aniston 饰）和克莱（T·J·米勒 T.J. Miller 饰）是一对相爱相杀的兄妹，他们共同在父亲的公司里工作，一个人是董事，另一个是执行官。在处理公司事务上，兄妹两人完全是截然相反的两种态度，卡罗尔严肃而又谨慎，希望公司里的一切都能够按照规章制度所设定的那样运转。生性放荡不羁的克莱则并不这么想，他希望通过种种重口味的活动和派对来刺激员工们的工作欲望。 父亲的去世让卡罗尔和克莱必须决定他们谁才是这家公司真正的继承人，为了拉拢人心，克莱在损友乔什（杰森·贝特曼 Jason Bateman 饰）的帮助之下决定举办一场疯狂的圣诞派对。
布莱恩（布莱德利·库珀 Bradley Cooper 饰）是一名军火承包商，年纪轻轻的他便在行业内闯出了一片属于自己的天地，攀登上了事业的最高峰。某日，他被上司派往夏威夷火奴鲁鲁军事基地，那里正在进行一项间谍卫星的开发和研制，需要布莱恩的监督，布莱恩兴致勃勃的踏上了旅途。 让布莱恩没有想到的是，在目的地，等待着他要和他一同共事，是一位名叫艾莉森（艾玛·斯通 Emma Stone 饰）的女飞行员，艾莉森冷若冰霜而又不苟言笑，着实是一个严肃而又无趣的女人，这令布莱恩感到十分郁闷，与此同时，布莱恩对前女友崔西（瑞秋·麦克亚当斯 Rachel McAdams 饰）依然抱有着不切实际的幻想，他联系到了崔西，企图和她破镜重圆。
