The girls are curious about Melissa's return visit to Rosewood. Meanwhile, Hanna meets with Det. Holbrook in an attempt to help her mom; a clue left by Ali leads the girls to an eerie mask maker; and Emily's mother is targeted by "A."

Spencer and Emily tour a college for different reasons: Spencer digs into Ali's link to the school, while Emily ponders her academic future. Elsewhere, Aria and her brother have a disagreement regarding their parents; Hanna uncovers something disturbing among her mom's things.