The truth may be only one text away in this one-hour series filled with mystery, scandal, intrigue and nail-biting suspense. Based on the best-selling book series for young adults from Alloy, Pretty Little Liars is set one year after the disappearance of Alison, the manipulative and vindictive queen bee. The drama revolves around four 16-year-old girlfriends — Aria (Lucy Hale, Privileged), Hanna (Ashley Benson, Bring It On: In It to Win It), Spencer (Troian Bellisario, Quantum Leap) and Emily (Shay Mitchell, Rookie Blue) — who have lost touch with one another until each begins to receive mysterious messages suggesting Alison is watching them and knows their most private details they had hoped to keep hidden. Suddenly, living in their picturesque suburban community is far from perfect as secrets, lies and betrayals threaten everything they hold dear. Even after Alison's body is found, the messages don't stop . . . Holly Marie Combs, Ian Harding, Laura Leighton and Chad Lowe also star.