I found this installment of the series an entertaining read, but Parker's "write by numbers" method is wearing thin. In the three volumes of the series I've read (Guilt, Deceit, and now Betrayal), the villain is described in roughly the same fashion and plays virtually the same role in the development of the plot; in Betrayal, Parker's initial description of the character made it a shamefully easy task to identify the stalker. In addition, the manner of the climax of the "mystery" seemed awfully familiar, making me wonder if Parker knows of any other way to reveal the identity of the villain. I wish Parker would write more challenging stories; the regular characters are compelling, but the plots leave a lot to be desired.