This starts off with a dark but humourous episode and then gets darker and less humorous, but by the end of episode 3 then I was wondering how on earth the plot would be resolved in the fourth and final episode.
No need to worry.
That was a joy to watch in every way, with the writing and acting simply top notch.
p.s. The guy that gave it 3/10 was referring to another series of the same name from 2016. Not this series.