Pretty Little Liars is an American teen drama mystery/thriller television series created by Marlene King, the show premiered on June 8, 2010 on ABC Family. The series based on Sara Shepard's popular teen novels focuses on four teenaged girls who made a pact not to talk about what happened the night their friend disappeared a year ago.
Set in the fictitious town of Rosewood, Pennsylvania, the series follows the lives of Aria Montgomery (Lucy Hale), Spencer Hastings (Troian Bellisario), Hanna Marin (Ashley Benson) and Emily Fields (Shay Mitchell), four girls whose clique falls apart after the disappearance of their queen bee, Alison DiLaurentis (Sasha Pieterse). One year later, they begin receiving messages from a mysterious figure using the name "A" who threatens to expose their secrets. At first they think it's Alison herself, but after she is found dead, the girls realize that someone else knows their secrets, including long-hidden ones they thought only Alison knew. As the show continues 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 death.
First I thought it is just another "I Know What You Did Last Summer", but it far more than that, the series has lot of things to offer. The characters are great and some part of their lives happened on teen’s life today that is why viewers can relate to it. The series is a bit realistic than those other TV series which is more on fantasy (referring about vampires, sorcerers, witches and alike TV shows) that you can’t really relate your life with. Pretty Little Liars also share lessons in life in some of their episodes but mostly their episodes will make the viewers think and think deeper.