Set in the fictional town of Lymington, Hampshire the novels are based upon the living lifes of Esmeralda Gilbert, Spencer McNallie, Taruni Brinsdon and Hanna Purgavie who's clique falls apart after the dissaperance of thier leader and Queen Bee Allison Rodrigues. One year later while Allison's body was found at Ground Garden's the girls discovered that there was a killer at large in Lymington. To the result of the estranged friends reunited, they begin recieving messages of a 'blocked number.' who knows there deepest and darkest secrets. But with this on the other end of the phone, will The Liars catch the killer of Allison, or will they pay the price of dealth?