Aria, Emily, Hanna and Spencer have been burned before by newcomers to Rosewood, so it's no surprise the four ladies are wary when someone new crosses their path. Spencer lets down her guard a bit as she spends more time with Jonny, and Emily continues to try and figure out Talia as she keeps getting mixed signals from her co-workers. When Mona's friend Lesli shows up in town, Hanna is tasked to get her back story and find out if Lesli is really who she says she is. Are the girls wise to keep an eye on everyone, or can they allow a bit of comfort room without worrying it is an "A" trap?
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.