Excellent film noir. Suspenseful. Twists. Great characters. And many characters plots and subplots. Great location. Moody. Excellent cinematography. Immersive in the Welsh language and English language to great effect. Easy to follow. Completely unpredictable, right to the end. Good guys are bad guys, bad guys are good, and many of them are both good and bad. This is a great series. Really well done. WE NEED MORE FILM NOIRS like this.