In the small, tightly-knit town of Rosewood, everyone has secrets-but none as tangled as those surrounding 16 year old Ella Marie. After her best friend, Alison DiLaurentis, goes missing under mysterious circumstances, the town erupts with rumors, suspicions, and half-truths. Desperate to keep her own secret hidden, Ella struggles with the guilt of a forbidden romance she's been harboring for months: she's was seeing her best-friend's older brother, Jason DiLaurentis.