Hanna, Aria, Emily, and Spencer have been telling some outrageous stories, but no one seems to believe them, so when a killer comes after them, they wonder if the town of Rosewood will believe them.
Emma is shocked to learn she has a twin sister, Sutton, but on the day the girls are supposed to meet, Sutton is killed, and Emma risks everything to slip into her twin's life and try to bring the killer to justice.
