Man, this series popped into my Netflix feed and I'm so glad it did. It was fascinating!
What an interesting storyline.
Sort of like The Killing and The Forest and Black Spot, it features an enigmatic police inspector transferred to investigate ritualistic serial killings in the Baztán river valley (a GORGEOUS, isolated area at the northern tip of Spain—full of lore and superstition and a violently running river—and populated by the Basques).
Marta Etura is incredible as the self-described "tracker and hunter," Amaia Salazar. Her tenacity reminded me a lot of the Lisbeth Salander character.
After a traumatic childhood in Spain, Salazar went to the United States where she worked for the FBI and became a prolific profiler.
Having returned to Pamplona afterward, she is summoned to Baztán (and more specifically, to the precise village in which she grew up) to help with a difficult case.
The village is beautiful, the scenery lush, and Etura's charisma, magnetism, charm, fierceness, cleverness, and ACTING RANGE is really, really impressive.
So much so that I then proceeded to watch the second and third installments in what is known as The Baztán Trilogy.
I highly recommend the trilogy if you're into this genre of 'mysterious detectives leading even more mysterious investigations!'