Pretty Little Liars is a teen drama murder mystery television series on ABC Family. This show is based on a popular set of novels written by Sara Shepard. It captures the lives of Aria Montgomery (Lucy Hale), Spencer Hastings (Trojan Bellisario), Hanna Marin (Ashley Benson) and Emily Fields (Shay Mitchell) as they’re constantly threatened by an anonymous “A” in their town of Rosewood, Pennsylvania.
These four girls whose clique falls apart after their short time friend, Alison DiLaurentis (Sasha Pieterse) disappeared. One year later, they begin getting messages from a mysterious figure that goes by the name “A” who threatens to expose their secrets, as well as put them in danger. Because of its signature, the girls, at first, think that it’s Alison herself but after her body is found, the girls realize that someone else knows their secrets. The girls feel unsafe now that they know someone else is out there who knows their secrets that they thought Alison herself knew.