In picture-perfect Rosewood, Pennsylvania, ash-blond highlights gleam in the winter sun and frozen lakes sparkle like Swarovski crystals. But pictures often lie - and so do Rosewood`s four prettiest girls. Hanna, Aria, Spencer, and Emily have been lying ever since they became friends with beautiful Alison DiLaurentis. Ali made them do terrible things - things they had to keep secret for years. And even though Ali was killed at the end of seventh grade, their bad-girl ways didn`t die with her. Hanna`s on a mission to corrupt Rosewood`s youth, starting with a very attractive sophomore. Aria`s snooping into her boyfriend`s past. Spencer`s stealing - from her family. And pure little Emily`s abstaining from abstinence. The girls should be careful, though. They thought they were safe when Ali`s killer was arrested and A`s true identity was finally revealed. But now there`s a new A in town turning up the heat. And this time Rosewood is going to burn.