First I was a bit disappointed, I had no expectations at all, but the first episode was a bit slow for me. I kept on watching because of the nice scenery it plays on. The whole police investigation looked like a sort of chaos, they were tapping in the dark and the small details they found out just didn't add up but then there was a turning point and after that every little puzzle came to its place.
It was very exciting and the places where they made the film were really breathtaking.