Sixteen-year-old Vivien is trapped in The Vestalis Academy, a prison-like boarding school. She keeps to herself and sticks her neck out for no-one. Until she is reunited with Sophia–the former friend who betrayed her. Together the girls embark on a dangerous search to uncover the horrifying truth behind their imprisonment. Soon running for their lives, the girls must save themselves or die trying.
All of the girls are named after classic Hollywood actresses: Vivien (Leigh), Sophia (Loren), Ava (Gardner), Rita (Hayworth), Olivia (de Havilland), Clara (Bow), Hedy (Lamarr), Audrey (Hepburn), Grace (Kelly), Veronica (Lake), Greta (Garbo), May/Mae (West), and Natalie (Wood).