The first time Aiden Kendrick hears about Lizzie Summersall's disappearance is when the police appear at his front door. He and Lizzie used to be friends; they aren't anymore. And when Aiden finds out that Lizzie had been talking to strangers on Facebook; that the police think she went to meet one of them, he begins to wonder how well he ever really knew her at Aiden doesn't know it yet, but with Lizzie's disappearance his life is about to take a twisted and desperate turn.