一所英国寄宿学校附近的水力压裂地出现了一个神秘陷坑，被释放出的恐怖力量令整个学校变成了一个血腥的杀戮战场。
Finn Cole
Don Wallace
Asa Butterfield
Willoughby Blake
Hermione Corfield
Clemsie Lawrence
Simon Pegg
Meredith Houseman
Michael Sheen
The Bat
Nick Frost
Woody Chapman
Tom Rhys Harries
Clegg
Isabella Laughland
Kay
Kit Connor
Wootton
Jamie Blackley
Caspar de Brunose
Margot Robbie
Audrey
Jo Hartley
Babs Wallace
Jane Stanness
Matron
Louis Strong
Smudger
