"The Spider and the Fly is set in Paris during the cloud-cuckoo days before WW I. The storyline intertwines the destinies of three people. Guy Rolfe plays Phillipe de Ledocq, a resourceful safecracker who always manages to elude arrest. Eric Portman is cast as police-chief Maubert, who will not rest until Ledocq is behind bars. And Nadia Gray is Madeleine, the woman beloved by both Ledocq and Maubert. Just as Maubert has managed to capture his man, Ledocq is released at the behest of the government, who wants him to steal secrets from the German embassy revealing the whereabouts of the Kaiser's secret agents. And just how does Madeleine figure into all of this? Spider and the Fly is a diverting precursor to the 1960s TV series It Takes a Thief." ~ Hal Erickson, Rovi
乔(劳伦斯·哈维 Laurence Harvey 饰)出身卑微,为此,他一直感到十分自卑。可是,这样的乔却偏偏爱上了大企业家的女儿苏珊(海瑟·西尔斯 Heather Sears 饰),身份的巨大悬殊令这段感情注定得不到祝福。为了阻止这段感情,苏珊的父亲为苏珊安排了同她门当户对的结婚对象,乔为此感到万分屈辱。
美艳的女演员爱丽丝(西蒙·西涅莱 Simone Signoret 饰)出现在了乔的身边,两人的关系逐渐亲密,可这任然无法填补乔内心的空虚。乔深知身份和地位的重要,为此,他重新回到了苏珊的身边,希望能够借此挤入上流社会,最终,苏珊的父亲拗不过女儿的执着,答应了这门婚事。惨遭抛弃的爱丽丝失去了全部的希望,与一场意外中不幸身亡。