I watched this series a few years ago, it’s absolutely incredible. If you’re in the UK and you have a love for spooky thriller/horror series, then you’re going to enjoy this just as much as I did. It’s on ITVX.
Seconded. I bought it to avoid having to watch adverts!
You may enjoy Dark Matter by Michelle Paver. It's an Arctic-set ghost story. The audiobook is superb: the novel's written as a first-person diary, so the narrator gets into character rather than just reading it. Wonderfully creepy!