Since I recall a few threads about this on occasion of earlier seasons, and several members were watching, just a heads-up if you missed it:
"Peaky Blinders", the British 1920s gangster series which a friend of mine has called "Downton Abbey's Evil Twin", had its 5th season released on Netflix last week.
I just found out and have only watched the first episode, but it appears to keep up the dark standards of previous seasons. So don't expect comic relief
If you're not familiar with it, you might give the earlier seasons a try, especially if you like old British revolvers: