汤尼(雷·米兰德 Ray Milland饰)和玛戈(格蕾丝·凯利 Grace Kelly 饰)是貌合神离的一对夫妻。汤尼常常为了他的事业和爱好,把娇妻忘在一边,二人感情亮出红灯。而生活寂寥的玛戈和作家马克不可避免的擦出爱之火花,他们约会、通信,不料竟被汤尼发现。汤尼没有 声张,只是写了一封匿名信给妻子以示警告。然而现在马克竟然造访家中,为了一雪耻辱,加之图谋得到妻子玛戈的丰厚财产,汤尼暗生毒计。 汤尼向旧时同学列斯开出了一千英镑的价钱,让其参与他布下的一整套严密杀人计划。这套计划有设计精妙的凶手不在场证据
When FBI Agent Zack Stewart is killed, Agent John Ripley takes over the three cases he was working on, hoping one will lead to his killer. The first involves gangster Joe Walpo and Ripley finds his hideout through Joe's girl friend, Connie An