This novel enters the mind of a sociopath--a place where the rules don't apply. Where anything is fair game. And where murder is the ultimate means to an end. Film and theatre critic Caroline Enright thinks her trip to a theatre festival in the beautiful Berkshire mountains of Massachusetts will be as easy as a summer breeze--until her complicated relationship with her stepdaughter, Meg, grows even more tense, and two of Meg's friends are killed in what looks like a tragic accident. Soon a world-famous actress goes missing. An actress who has been the obsession of millions--or maybe just the true obsession of one? As Caroline gets drawn into a web of deception and insanity, she finds she can trust no one. Because a sociopath will stop at nothing. And they wear the mask of a friend, a lover, a husband, or a wife...--From publisher description.