十九世纪末，儿童时代的亚森•罗平在盗贼父亲的训练中苦学技巧，同时将父亲劫富济贫的教导谨记于心，然而一次次从警察搜捕中逃脱的父亲最终却死在同伴的石头下。时光荏苒，罗平（罗曼•达瑞斯 Romain Duris 饰）多年以后已经成长为一个在各种高级社交场合上如鱼得水的珠宝盗贼，他因探望母亲重新与儿时的朋友格拉莉丝（爱娃•格林 Eva Green 饰）相见，并入住后者家中。在一个尾随格拉莉丝之父的夜里，罗平偶然发现了一起秘密审判：传说不老的女人约瑟芬因盗窃隐藏法国国王宝藏的三支十字架而被判处极刑，罗平出手救走约瑟芬，获悉宝藏的秘密，而这也使他招惹来劲敌波马尼昂的追踪。罗平、约瑟芬、波马尼昂三人围绕十字架展开了一段错综纠结的争夺，而事情的真相，超乎所有人预料……...
In Reasonable Doubt, you'll judge Jax Stewart for her questionable ethics and wild interpretations of the law until you're the one in trouble. Then you'll see her for what she is: the most brilliant and fearless defense attorney in Los Angeles who bucks the justice system at every chance she gets....
