Superb so far.
I really liked "Unforgotten" and obviously that was a scripted drama whereas this isn't, although it's very dramatic.
The most interesting thing is that it poses the question about privacy vs security in a way that makes me question my attitude to the omnipresent CCTV cameras.
I'm still on the fence regarding whether constant surveillance is a good or bad thing, but this may force me to choose between one or the other.
If the opposite of Love is indifference, what's the opposite of Hate?