They Remain

This seems to be an attempt to create intellectual horror, or intellectual dread. There are atmospheric moments, but since the mishmash of story and backstory are ultimately incomprehensible, not in an artistic and interesting way but in the manner of incoherence, the movie is much ado about nothing. If you want an interesting and strangely suspenseful movie which moves along at a similarly deliberate pace, try Phase 4, and excellent understated science-fiction drama/eco-horror. They Remain seems to be trying to achieve something similar, but fails in ho-hum fashion.