Another case of embezzlement and blackmail - it seems that the brother of Perry's client was being blackmailed and may have been an embezzler. However, he was struck by an auto and in a coma. Perry's client is operating in the dark and since she insists on following her instincts rather than legal advice, it puts Perry behind the eight ball trying to defend her.
Perry Mason's beautiful new client isn't giving anything away, not even her name, and he suspects that what she does choose to reveal is mostly lies. Certainly the bag full of cash she carries isn't shopping money. All the mystery woman asks is that Mason make himself available for a few days in case she needs him--for what purpose, she remains silent as the grave.
In fact, his headstrong client, who identifies herself only as "36-24-36," is headed for disaster--not only into a blackmailer's clutches but into a lethal trap from which not even Perry Mason's brilliant courtroom sorcery may be able to extricate her.