“Reminder: I own you. -A”

In the small town of Rosewood, big secrets are hidden. Area, Emily, Hanna, and Spencer are four best friends who are united in one mystery on ABC Family’s Pretty Little Liars. A little over a year ago, Alison, the leader of their clique, disappeared. Just when it seems that is truly gone forever, the girls start to receive threatening messages from an anonymous person signed A. Even more bizarre, the notes contain secrets that only Alison could know.

As more clues surface as to who is behind Alison’s disappearance, the more complicated the girls’ lives become. They are forced to save the ones they love, while protecting their secrets as well. Pretty Little Liars is a Mercy favorite.

Junior Maria Pluszczynski is an avid Pretty Little Liars fan.

“It’s a great riveting show that I look forward to every Monday,” said Pluszczynski. “I feel like I’m never going to know who A is!”

Currently in its second season, Pretty Little Liars airs Mondays at 8 p.m. on ABC Family.