纽约探员尼克(迈克尔•道格拉斯 Michael Douglas 饰)是个桀骜不驯的离异男子,他最近因渎职嫌疑被风纪部门调查。某日尼克与搭档文森(安迪•加西亚 Andy Garcia 饰)在一家餐厅中偶然遇到日本黑帮的内部火并,二人虽将主犯佐藤(松田优作 饰)捕获,但佐藤抢到的神秘块状物却不翼而飞。日本方面要求引渡佐藤,尼克和文森只得押解佐藤到达大阪,岂料在飞机场,尼克误将佐藤交给了乔装后的黑帮分子。不甘心失去人犯的尼克和文森以观察员的身份,在日方助理兼翻译松本正弘(高仓健 饰)协助下继续调查佐藤一案,他们发现佐藤正与大老板菅井为了制造假钞的铜板火并。不久,文森被佐藤一伙杀害,尼克的处境也愈发艰难,但他固执的要在晦暗的陌生城市中抓到凶手……
Harry Moseby (Gene Hackman), a worn-out private detective, is hired to look for a 16-year-old girl who has run away from the luxury home of her mother, formerly a small-time actress in Los Angeles. The more the weary cynic tries to get under the surface of the seemingly simple case, the harder it is for him to find his bearings among the lies and deceptions that surround him. Eight years after the key New Hollywood film Bonnie and Clyde, Arthur Penn and Gene Hackman reunited to collaborate on what was to become one of the most undervalued films of the decade. Like Polanski in Chinatown or Altman in The Long Goodbye, in his revisionist film noir, Penn also allows the 1940s classic genre to pervade the complex reality of the 1970s. The feelings of bitterness and emptiness in the modern Chandleresque protagonist originate not only in the “public” sphere of the strange, increasingly convoluted case, but in his private life as well (boyhood trauma, a broken marriage). As Moseby remarks of a sporting event, “nobody’s winning … one side is just losing slower than the other.”