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1. Style and content
The narrative structure of the film is two halves. Firstly there is the tragedy and
cabin scene, and then the second half is cave exploring with the survival and
horror aspect. To add context to the movie, the first half was used to make Sarah
the kind of character nobody believes due to her mental issues. The first half is
also used to trick the audience into predicting the horror to be hallucinations
rather than the crawlers therefore the first appearance of the crawler could
shock the audience and frighten them at the same time. In the second half, the
characters go through a series of horrific moments with gaps long enough to
cause the audience to get scared again but not so long that they stop being scared
altogether. Whenever a crawler comes out of nowhere, there are screeching
sounds edited in to make the scene a jump scare.