6.4
Synopsis
Four teenagers at a British private school secretly uncover and explore the depths of a sealed underground hole created decades ago as a possible bomb shelter.
CrimeDramaHorror
Trailers
Cast
Thora Birch
Liz Dunn
Desmond Harrington
Mike Steel
Keira Knightley
Frances 'Frankie' Almond Smith
Laurence Fox
Geoff Bingham
Embeth Davidtz
Dr. Philippa Horwood
Steven Waddington
DCS Tom Howard
Emma Griffiths Malin
Daisy
Kelly Hunter
DI Chapman
Daniel Brocklebank
Martyn Taylor
Jemma Powell
Minnie (as Gemma Powell)
Gemma Craven
Mrs. Dunn
Anastasia Hille
Gillian
More Like This
your taste, ranked.
Telly turns head-to-head battles into a ranked list of everything you’ve watched — no star ratings, no reviews. Your entertainment identity, one matchup at a time.
Free on iPhone · Rank movies & TV · Battle your friends’ taste