Sixteen-year-old Vivien is trapped in The Vestalis Academy, a prison-like boarding school, keeping to herself and sticking 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.16岁的Vivien被困在Vestalis学院，这是一所像监狱一样的寄宿学校，她对自己保持沉默，不为任何人伸出脖子。直到她和背叛她的前朋友索菲亚重聚。女孩们一起进行了一次危险的搜索，以发现监禁背后的可怕真相。很快，女孩们就要为自己的生命奔波，要么自救，要么就得努力死去。