Loch Ness is a new series that just started running on Acorn TV in the US. I looked it up online and was surprised to see that it apparently also just started running on ITV in the UK. Usually Acorn gets their shows some time later than the original British airing. I think in the UK it's called
The Loch.
Here's the description from Acorn:
The beautiful, haunting shores of Scotland's most iconic loch is the stunning backdrop for the new six-part crime drama. In a community nourished and sustained by myth and bordered by untamed nature, the search for a serial killer becomes a matter of life and death for local detective Annie Redford (Laura Fraser, Breaking Bad). Within the tightly knit town, a sense of horror begins to dawn as the villagers realize that there is more than one kind of monster in their midst
We thought the first episode (the only one available so far) was very good. Here's a link to a
review in the NY Times.