雷(切瓦特·埃加福特 Chiwetel Ejiofor 饰)是一名非常出色的FBI探员,搭档杰西(朱莉娅·罗伯茨 Julia Roberts 饰)和检察官克莱尔(妮可·基德曼 Nicole Kidman 饰)是他的好友,三人组成了坚不可摧的铁三角,惩奸除恶,所向披靡。然而,某日,杰西的女儿被残忍的杀害了,女儿的死带给了杰西巨大的精神创伤,三人也就此渐渐分道扬镳。 一晃眼十三年过去,当年耸人听闻的凶杀案如今已经渐渐尘封,可它给人们带来的伤害却并没有减少分毫,凶手依然逍遥法外。一次偶然中,雷发现了某些新的线索,这些线索让他开始重新调查当年的案件,此时的雷并不知道的是,他即将开启的,是隐藏了怎样可怕秘密的潘多拉魔盒。2002: Ray Kasten (Chiwetel Ejiofor) and Jess Cooper (Julia Roberts) are two investigators in a private police unit led by the DA. When they receive an anonymous tip about a girl raped and killed, they rush to the scene. Ray realizes it is Jess' daughter and the team falls apart due to the grief. In 2015, Ray comes back to LA, and says that after 13 years, he has found a lead and convinces the DA to reopen the case. They find clues and leads unknown to them, and secrets from the past come to light as they start discovering the real, chilling truth. Meanwhile, Jess, dissatisfied with the law, decides to take matters into her own hands and track down the killer, no matter what lengths she has to go to.