好莱坞当红巨星乔治（本·阿弗莱克 Ben Affleck 饰）的死让未婚妻雷洛尔（罗宾·汤尼 Robin Tunney 饰）和母亲海伦（罗伊丝·史密斯 Lois Smith 饰）肝肠寸断。官方报道中，乔治死于自杀，然而，对于这一结论，海伦心中充满了疑惑。 为了找出儿子死亡的真相，海伦雇佣了私家侦探路易斯（阿德里安·布洛迪 Adrien Brody 饰）。随着调查的展开，路易斯发现乔治和米高梅制片公司总裁艾迪（鲍勃·霍斯金斯 Bob Hoskins 饰）的妻子托尼（黛安·莲恩 Diane Lane 饰）有过一段风流往事，这似乎成了乔治之死的关键。就在路易斯接近真相的同时，危险也在接近着他，在暗中，似乎有一些有权有势的大人物并不希望路易斯找到他想要得到的答案。
Lewis returns to Oxford after several years absence and is reluctantly assigned by his new boss, DCS Innocent, to the murder of an Oxford mathematics student who was shot while participating in a sleep study. The key-code used to access the sleep lab was assigned to a fellow maths student, Daniel Griffin, but Daniel's math tutor has provided him with an alibi. Daniel is a maladjusted young man who will soon inherit his father's automotive empire. He is disruptive and has no respect for his uncle who now heads the company. The future of the company however rests on an impending deal with Japanese investors who insist that family unity is all important at this time. When two other murder occurs, Lewis must decipher a cryptic clue left in an old case file by his former boss, Chief Inspector Morse.
