Many criminals made the mistake of underestimating Lieutenant Columbo, a homicide investigator with a crumpled trench-coat and a beat-up car, who certainly acted as an incompetent bumbler. But he was so polite to every suspect, and he talked so much about his wife (who we never got to see on any episode, but who many believe later had her own show, starring Kate Mulgrew, later of Star Trek: Voyager fame) that he lulled even the shrewdest murderer into a false sense of security. And although the audience had witnessed the murder in the beginning of each episode, it was still a surprise to see what mistakes the killers had made during the seemingly perfect murder.
炎沛湖（苏玉华 饰）是含着金汤匙出生的千金大小姐，在即将和恋人张至凯（黄智贤 饰）步入婚姻殿堂之际，她被控谋杀而关入了监狱，之后，炎沛湖意外的遇见了失散多年的妹妹苏菲（唐宁 饰）和大姐江丽雅（田蕊妮 饰），得知了炎沛湖的冤情，苏菲和江丽雅决定联手还炎沛湖一个清白。 江丽雅意外得知自己患上了不治之症，命不久矣，怜惜炎沛湖的她决定顶替妹妹之名，替她坐牢。独自奋战在调查事件真相第一线的苏菲发现江丽雅的绝症竟然是炎沛湖一手策划的阴谋，失望的她找到了江丽雅，要帮助她越狱。炎沛湖机关算尽，但最终却失去了一生挚爱。
故事围绕身花魁三姐妹展开，各自拥有自己梦想的三姐妹，想要摆脱身不由己人人可欺的生活，在追求自由的路上，遇到了各种爱恨挣扎的故事
