Pretty Little Liars
Creator: I. Marlene King
Country of Origin: US
First Air Date: 06-08-2010
Most Recent Air Date: 06-27-2017
Based on the Pretty Little Liars series of young adult novels by Sara Shepard, the series follows the lives of four girls — Spencer, Hanna, Aria, and Emily — whose clique falls apart after the disappearance of their queen bee, Alison. One year later, they begin receiving messages from someone using the name "A" who threatens to expose their secrets — including long-hidden ones they thought only Alison knew.