米勒一家似乎拥有所有人都梦寐以求的生活:豪宅、跑车、美满的家庭。在一个普通的日子,美丽的妻子萨拉(妮可·基德曼 Nicole Kidman 饰)迎接出差回家的丈夫,成功的钻石采购商凯尔(尼古拉斯·凯奇 Nicolas Cage 饰)。凯尔回家的同时青春期的女儿则艾弗瑞(丽亚娜·莱伯拉托 Liana Liberato 饰)瞒着父母偷偷溜出家门去参加朋友家的派对。可是天有不测风云,一伙由四人组成的抢劫团伙闯进米勒家,绑架了夫妇二人欲实施抢劫。艾弗瑞参加完派对回家也不幸撞到了家中正在发生的悲剧。面对丧心病狂的劫匪,米勒一家将怎样解除危机?他们是否会安然无恙?而这看似普通的抢劫背后是否又有不为人知的阴谋和肮脏的秘密?Kyle and Sarah Miller have it all: a huge gated house on the water, fancy cars, and the potential for romance in their relationship. He's just back from a business trip (he brokers diamonds) and their teen daughter Avery is sneaking out to a party, when four thugs in security uniforms and ski masks stage a home invasion. They want what's in the safe: cash and diamonds. Kyle stalls them, trying to negotiate for Sarah's freedom. Over the next few hours, the back stories of the four robbers (two brothers, a girlfriend, and the representative of a local drug kingpin) as well as the fault lines in Kyle and Sarah's marriage come into play. Is there room here for heroism?