This decade have more desolate parts of the UK created their own crime dramas, where harsh nature bears a natural supporting part, emphasizing the bad thoughts and bad deeds... Events and characters are intertwined, actors-actresses have usually no model look, creating the atmosphere of reality and letting to pay more attention on the whole cast rather than someone single and "famous".
The series in question, with main events in the Scottish Highland, includes the features above, and that is why it is generally to my liking. But as the total No. of episodes is 4 only, some supplementary events and characters are excessive, focusing on 1 crime could have been enough. The course of solving the crime is okay, the wrongdoer was not revealed too early, but the motives and background did not leave distinct impression for me. That is why I rate e.g. Shetland and Happy Valley higher than this miniseries here.