Almost 40 years ago, I saw a made for TV horror- "Don't Be Afraid of the Dark". Now, that wasn't VERY good, but had a bit of intrigue and I always longed for some background to the-in this case- pointy headed evil dwarves.
This film provides a bit of that as a remake, and overall it's not half bad. For what it is, the acting's OK, the creatures are really nasty little buggers, and as well done as we ought to be able to expect nowadays. Also, it's less than completely predictable, with a couple of good jumpy moments.
Oh, yes, it's all good familiar territory, set up by the usual bit of research, Scooby Doo caretaker and so on, but heck, it's not bad, though not, I think deserving of four stars.
Having recently revisited the classic "The House on the Borderland", I enjoyed the critters from some form of world beneath the house, although I know that's not the only relevant source.
Overall, not as dire, I think as some have made out, but GDT can do so much better. I hope we can see a real cracker from him soon, as the last three of his movies I've seen have been below par for him.