It Crawls Beneath Access

Provide a (with spoilers) of the movie.

The antagonist is a venomous, subterranean "mud-dweller" that thrives in the dark, damp crevices opened by seismic activity. It Crawls Beneath

A claustrophobic "single-location" thriller where the protagonist must use limited tools and his wits to survive both a mechanical deathtrap and a biological predator. Provide a (with spoilers) of the movie