Based on the Pretty Little Liars series of young adult novels by Sara Shepard, the series follows the lives of four girls — Spencer, Hanna, Aria, and Emily — whose clique falls apart after the disappearance of their queen bee, Alison. One year later, they begin receiving messages from someone using the name "A" who threatens to expose their secrets — including long-hidden ones they thought only Alison knew.
After a teenage girl's perplexing suicide, a classmate receives a series of tapes that unravel the mystery of her tragic choice.
As her 16th birthday nears, Sabrina must choose between the witch world of her family and the human world of her friends. Based on the Archie comic.
When a hacker begins releasing students' secrets to the entire high school, the socially isolated but observant Sofía works to uncover his/her identity.