My name is Piper Hadley & I went missing on the last Saturday of the summer holidays three years ago. When Piper & her friend Tash disappeared there was a huge police search but they were never found. Now Tash reaching breaking point at the abuse their captor has inflicted on them has escaped promising to come back for Piper. Clinical psychologist Joe OLoughlin & his stalwart companion ex-cop Vincent Ruiz force the police to re-open the case after Joe is called in to assess the possible killer of a couple in their own home & finds a connection to the missing girls. But they are racing against time to save Piper from someone with an evil calculating & twisted mind...