Aria, Emily, Hanna and Spencer have made a crucial mistake - they told someone about "A" and now they must pay the price. With the clock ticking and "A" calling the shots, the girls are sent on missions to do "A's" bidding in order to save their trusted confidant.
Never trust a pretty girl with an ugly secret. Gossip thrives amid the Mercedes-Benz, mega mansions, and perfectly manicured hedges in the exclusive town of Rosewood, Pennsylvania. Everyone has something to hide. Based off the book series of the same name, the series follows four estranged best friends Spencer, Hanna, Aria, and Emily who are reunited after their best friend and queen bee of the group, Alison, goes missing only to discover they are receiving messages from an anonymous "A" who knows all their secrets.