Remaja kelas menengah yang baru pindah harus berjuang di sekolah asrama ternama saat lubang runtuhan di situs pengeboran melepaskan serangkaian teror mengerikan.
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
Jassa Ahluwalia
Yuri