Engaged to a dynamic young go-getter on his way up the corporate ladder, secretary Mildred Crest was riding high. Until her prince charming embezzled company funds and skipped town, leaving Mildred with nothing but a ring on her finer and egg on her face. Now all she wants is to start life over again. And when a fateful drive leads to the death of a lone hitchhiker, Mildred gets that chance - and a lot more. But switching identities with another woman isn't the sweet escape Mildred dreamed it would be. Because the hitchhiker was on the run from a world of troubles - including a scandal that made her the target of a blackmailer. Desperate, Mildred turns to Perry Mason, who tries to put the screws to her tormentor. But when the extortionist gets exterminated, the whole sordid affair takes an even darker turn for the worse...