Truly superb writing, casting, acting, direction and editing. This show is a work of art. If you can, please watch in a quiet, intimate setting to truly appreciate the elegant horror being served. I have never been as impressed with a series as I am with this one. It's very surprising that a show this dark was on network television, I can't see the NBC viewer appreciating such darkness. I'm preparing for a second viewing of all the seasons. It was perfection to the very end.