This could've been great but it was spoiled by its slow pace. I respect that it's based on a true account (and it's well told), it has a great cast and superb acting (although a lot of the snot and drooling to make it look real, didn't quite cut it for me) but on the whole, it felt a little rough and unfinished. A waste of a good cast, really.
Someone trying to rediscover their creepy past is always a great ingredient for a good watch but, my goodness, the dialogue is stretched too far and the scenes are so dragged out. I understand this is to tell a gripping story and add to the atmosphere but, personally, I just wish the pace was picked up in order to squeeze some more detail.
Dinah, a potentially great character but the writing just made her pointless in the end. In hindsight, the advert was a better watch. In fact, the more I write, the more faults I discover so I'll stop here.