Twenty years ago, when they were teenagers, Holly and Nicola were the outsiders at summer camp. Holly was the plump one, a dreamer who longed to be an artist. Nicola was the shy, plain one who wanted nothing more than to be beautiful. Their cabin nemesis was Lexi. Rich, spoiled, evil Lexi. One night, Holly and Nicola team up to pull one, daring act of vengeance. But they never dream that this one act will have repercussions that will reach into the future, even twenty years later. And they never realize the secret pain that Lexi holds very close, and how their need for revenge costs Lexi a great deal.