They falls in the category of, I nearly turned it off. What an ill-conceived, poorly scripted, terribly acted piece of crap. The gist: A group of friends had childhood night terrors in which some kind of creatures tried to kill them. In their adult life, they find out that they were "marked" by these creatures who are now coming back for them. There is something about "alternate universes" or at least "a creature world that is invisible to humans but can be inhabited by humans". Things may get confusing from here on out if I don't stop to mention that these creatures are called ( you guessed it ) THEY. Where this story falls down: Why these four people and NO ONE ELSE IN THE WORLD?! This isn't really explained (or was unsatisfactorily explained). Why do THEY bring people into their alternate monster universe to be killed when they can maul people in the regular human world? This seems inefficient at best. And like bad writing at worst ...
these are movie musings for snarky movie nerds. there's always spoilers.