I think this is a suspenseful and nicely written episode. But I'm unsure if this fits within the Black Mirror universe. I was surprised to see such an episode in this season. While it is intriguing, disturbing and very dark, I wondered if this fitted better in another TV series or a thriller on its own. There is nothing futuristic or technology related here. I always thought Black Mirror was showcasing the advanced levels of technology and its intersection of the human experience. Those two facets often crashed in a dark and intriguing way that was hard to pull away from. But this episode feels out of place to me.
Review of Loch Henry
