If that sounds like a familiar trope, how about another? Like, say, a killing on such a spree that it requires tracking via a complex wall map peppered with thumbtacks, Post-it Notes, newspaper clippings.
There are more, from scenes of terror that turn out to be dreams, to nocturnal campground didja hear that? exchanges. This wouldnt be so bad if they added up to something, but director Simeon Halligans debut feature indulges in too much talking and fighting and drinking as his characters await these mysterious beasts, and not nearly enough suspensing.
The big baddie at the root of Splintered is more feral than supernatural, but it matters not when the proceedings are dark and hard to see even on Blu-ray and when the story just goes through the motions. British horror can do better. Rod Lott