A young couple, for some reason on holiday in Scotland despite the wife being very heavily pregnant, fall into the hands of religious nutters. Extreme blandness ensues. Here's the thing: if you're going to call your film "Matriarch" and your main villain is a crazy religious woman who holds the men in her family completely under her control it's maybe not a good idea to cast someone ( Julie Hannan) who looks like, and is about as menacing as, the sort of wee wumman who gives you toffees in the Post Office queue. There's some nice Scottish scenery, a house that looks not remotely like the sort of property the characters would stay in, flat photography, dull writing, poorly executed violence. The latter actually woke me up slightly because the physical confrontations with the villains are handled so badly that I had to check if they were some kind of red herring, but they're not. Oh, and the baddies seem to live where a team of heavily-armed police can be assembled and arrive in about 5 minutes despite it also somehow being a remote place where there's no mobile phone signal ... until the plot allows there to be. The cops deliver another hilariously bad bit of violence, then there's a pointless supernatural twist ending.
Director/Writer/Producer/Star Scott Vickers has a background directing and acting in soaps. He has no feel for the horror genre whatsoever. My wish for the British horror genre is for about a 90% drop in the number that get made and a bit of an increase in the quality of the ones that do.
ETA: I just had a look on imdb and I see that this film has received 130 reviews, a number of them 8, 9 and 10 stars, more than one of them comparing it to Hammer. That seems a lot of reviews for a tiny movie and particularly a lot of praise. I clicked through the profile of some of the reviewers ... hmm ... a lot of them seem only to have reviewed this one film, a lot of them seem to have reviewed and dislike the remake of Pet Sematary and not much else. I'm calling shenanigans. I think this is a concerted campaign of fake reviews (and I see that one reviewer agrees with me).
Never trust Imdb....