I reside on the Shetland Islands, and I found it almost laughable that the director or producer decided to put the name of islands in a hat and pick out Unst on the Shetland Islands.
I also used to live in Unst before moving to the main town in Shetland, Lerwick (Leirvik, its Scandinavian title) and if only Unst had such high tech amenities and infrastructures, because it does not. lol
The film is poorly done with obvious editing errors in it.
I also noticed the very strong Scottish accents, which bares no resemblance to the Unst dialect or even this of Shetland.
It reminds me of the islands of Orkney, where children were taken from their parents because one child said the parents were involved in devil worshipping and alike. However, thankfully the children were returned to the parents after it was discovered the child made the story up.
I suspect this is where the Director/Producer got his story line from???