当波士顿·布莱基的私人侦探朋友乔·肯扬在可疑的情况下死于车祸时，布莱基向肯扬夫人提出让他在一个由富有的卡特夫人举办的派对上担任保镖。卡特夫人拥有世界上最昂贵的珍珠项链之一。卡特夫人在舞蹈教练伊戈尔·博里奥的陪同下款待客人时，项链不见了。法拉迪探长被叫了进来，在他的口袋里发现了珍珠(这并不奇怪，因为布莱基总是他的第一个嫌疑犯)。在对卡特夫人的侄女多丽丝·布拉德利的公寓进行搜寻时，布莱基再次发现了藏在多丽丝的朋友琼·豪厄尔外套衬里的珍珠。琼·豪厄尔参加了那次派对，并爱上了博里奥。在调查博里奥的过程中，布莱基得知这位舞蹈演员的秘书桑德拉·多雷与南部一起珠宝抢劫案有关。他给他们设了一个圈套，只是为了……
波士顿·布莱基离开了一家中国洗衣店，但在他离开后不久，洗衣店老板在那里被谋杀。布莱基成为被怀疑的对象，他必须在唐人街找到真正的凶手。
When enemy agents obtain leaked secrets about a guided missile reservation, the chief of America's counterspy division (Howard St. John) and Scotland Yard's best investigator Ron Randell get on an investigative trail which quickly leads to a reservation secretary (Gunsmoke's Miss Kitty, Amanda Blake).
A vicious loan shark ring has been preying on factory workers. When several workers at a tire factory suffer violence at the hands of the loan sharkers, a union leader and the factory owner try to recruit ex-con Joe Gargan to infiltrate to the gang. At first Joe does not want to get involved, but changes his mind when his brother-in-law dies at the hands of a savage loan shark ...
