Indeed, and you’ll be pleased to know that the Beeb have commissioned a second series of Small Prophets due to air next year.
It’s a well-trodden trope, especially the formulaic citizen who gets roped into solving crimes for the at times incompetent constabulary; Father Brown, Sister Boniface Mysteries, Hairdresser Mysteries, Ludwig, Pie in the Sky, Jonathan Creek, Cracker &c. Ludwig seems to be the only one with a wider story arc intertwined with individual murders as subplots.
Oh, I hope you are having a lovely time.
I don’t tend to watch those genres when it comes to television.
However, if well done, I will when it comes to films.
I’m a bit of wuss when it comes to crime drama, so veer more towards the theatrical and absurd.
I did like Cracker for that reason. I am a fan of the hard-boiled detective genre, not so common on television these days because of corporate policies and public health standards. I miss a good anti-hero. In fact, in my desk drawer, I have a finished draft of a novel I finished just before stroke about a reprobate, hard-boiled priest who solves extraterrestrial mysteries. Think X-Files crossed with Cracker 
I have to admit, I did binge watch a lot of it and had that sinking feeling when it finished … now what am I going to watch? Like a child who has eaten all their Halloween sweets in one sitting. I have always been very disciplined with television, I’ll watch one episode of something with supper and leave it at that until the next day. However, recently, I have found myself wanting to absorb myself in the whole thing because it helps me escape from my symptoms. In essence, I find myself self-medicating with television.
Apparently, the set designers have hidden geometric puzzles all throughout the show which I have missed entirely. I like the cryptic puzzle solving aspect of the programme with the murders being based on such puzzles, but I think the wider mystery keeps the show ticking along. I also like David Mitchell and think he brings a lot to the show, the supporting cast are all very good too which helps.