英文剧情： Frank Keller is a New York detective investigating a case of a serial killer who finds the victims through the lonely hearts column in newspapers. Keller falls in love with Helen, the main suspect in the case.
In Manhattan, Detective Frank Keller (Al Pacino) is an efficient and veteran cop with twenty years on the force, who is lonely and misses his ex-wife Denise. She left him to live with his colleague from the same precinct Gruber (Richard Jenkins). When a killer kills his victim with a shot on the neck and leaves a single playing "Sea of Love", Frank is in charge of the investigation. Detective Sherman, from a district outside Manhattan, joins Frank when a second victim is killed in the same MO. They find that both victims have written poetry in the lonely hearts column of the single magazine "New York Weekly". When there is a third case, Frank convinces his chief to write for the magazine and work undercover investigating the women that reply the advertisement. Frank fall in love for the prime suspect, the manager of a shoe store Helen Cruger (Ellen Barkin), jeopardizing his investigation.
Seen-it-all New York detective Frank Keller is unsettled - he has done twenty years on the force and could retire, and he hasn't come to terms with his wife leaving him for a colleague. Joining up with an officer from another part of town to investigate a series of murders linked by the lonely hearts columns he finds he is getting seriously and possibly dangerously involved with Helen, one of the main suspects.
中文剧情： 被妻子抛弃的痛苦让警察弗兰克（阿尔·帕西诺 Al Pacino 饰）陷入了痛苦的深渊无法自拔，每日，只有尼古丁与酒精才能够给予他救赎。一宗谋杀案的发生打破了城市的平静，弗兰克和搭档舍曼（约翰·古德曼 John Goodman 饰）负责此案。通过种种调查，弗兰克发现凶手是一名女子，她通过报纸上的征友启事寻找猎物，之后残忍的将他们杀害。 为了追击凶手，弗兰克伪造了自己的身份在报纸上刊登了启事，一个叫做海伦（艾伦·巴金 Ellen Barkin 饰）的女人出现在了他的面前。几乎所有的证据都证明了海伦就是案件的真凶，但此刻的弗兰克发现，自己竟然真的对海伦产生了依赖和感情，与此同时，危险也悄悄的来到了他的身边。