In the town of Rosewood, a deadly murder occurred 3 years ago. Five 8th grade girls murdered Karlie Kloss, a millionaire company owner's daughter. She knew too much. No one in Rosewood knew who murdered Karlie that night. Years later, the five girls each receive strange notes in their lockers saying they know what happened the night of Karlie's death. Kassandra Kloss, rich and popular sister of Karlie Kloss, goes on a rampage to find out who killed her sister, and she has five suspects in mind. She threatens to reveal their darkest secrets to the whole town, if she doesn't find out who her sisters real murderer is. Read on to find out how the five girls navigate through their high school life, with the extra baggage of knowing they brutally murdered someone.