唐尼(连姆·尼森 Liam Neeson 饰)曾经是满怀着正义感惩奸除恶的警察,却因为意外而被迫离职,离职之后,唐尼成为了一名私家侦探,专门为离婚案件提供线索。唐尼是一个可以为了达到目的而不择手段的男人,这种不择手段包括为了能够找到出轨证据而不惜让自己的妻子安捷琳(劳拉·桑·吉亚科莫 Laura San Giacomo 饰)去勾引客户的丈夫。 一次,唐尼又故技重施,哪知道玩脱了,不仅客户被杀,甚至牵连到了老婆,更糟的是,偷鸡不成蚀把米的唐尼成为了最大嫌疑人遭到了警方的追捕。而能够替唐尼洗脱罪名的人,只有他自己了。In 1959 Brighton, disgraced cop turned private detective Tony Aaron works largely on falsifying adulteries for use as evidence in divorce cases. He involves his wife as the fictional co-respondent for painter Carlo Stasio but the pair are shot dead in the hotel room. In charge of the case is Frank, Tony's ex-partner still on the Brighton force. His most likely suspects are Angeline, Stasio's mistress who is set to inherit his house and pictures, and Tony himself, parts of whose story don't seem to add up.