Season 1

Aria, Spencer, Emily, and Hanna were a group of girls brought together by the very out going Alison. All is well until Alison mysteriously disappears. The girls part ways until a year later when Alison's body is found buried within the gates of her own home. The girls are suddenly all brought together once again, and even before attending Alison's funeral, they begin to get horrifying messages from a stalker known as "A". "A" threatens to tell secrets from the past and present to the people that matter most to the girls will get hurt if the girls don't do what "A" says. The girls all have secrets that could potentially ruin their lives. Aria's secret is the relationship with her new attractive English teacher, Ezra Fitz. Spencer had a fling with her sister Melissa's boyfriend Ian, only after kissing her sister's ex fiancée Wren. Emily is a closeted lesbian with an attraction for friend, Maya. Hanna's mother struggles to keep up with money, and Hanna rebels by shoplifting and destroying her boyfriend's car. The girls attempt to discover the true identity of "A", but they encounter two people from their past, Toby Cavanaugh and Jenna Marshall. Jenna was blinded by one of Alison's pranks, and Toby took the blame and was sent to reform school. The girls continue to look for clues to help them discover the true identity of "A", which brings them closer to danger.