Pretty Little Liars

The series follows the lives of four teenage girls – Aria Montgomery, Emily Fields, Hanna Marin, and Spencer Hastings – whose clique falls apart after the disappearance of their leader, Alison DiLaurentis. One year later, after the discovery of Ali's body, they begin receiving text messages from an anonymous source , "A", who threatens to expose their secrets – including long-hidden ones they thought only their close friend Alison knew. As the shows continue they discover more secrets that can harm not only them but the ones around them. They also discover clues that may lead them to find out the identity of 'A' and Ali's killer.