代理警长Brenda Leigh Johnson（Kyra Sedgwick扮演）是一名由亚特兰大交换到洛杉矶的警探，她将负责领导洛杉矶警方的一个特别部门：处理那些敏感的、媒体关注度高的谋杀案。一个漂亮的女人来领导一群经验丰富的大老爷们破案，她的手下们自然很不服气。不管其他人的议论口舌，Johnson用自己杰出才能--一步步地诱导嫌疑犯在审讯中不经意地逐渐交待出真相，使所有人，甚至包括最反对她的对手都口服心服，因为只有Johnson才能将这些棘手的案件真相调查得水落石出 Deputy Police Chief Brenda Leigh Johnson (Kyra Sedgwick) is a police detective who transfers from Atlanta to Los Angeles to head up a special unit of the LAPD that handles sensitive, high-profile murder cases. Despite a tendency to step on people's toes, Johnson manages to convert even her strongest adversaries with her unique ability to get to the truth.