I finished the 3rd and final season of Mr Inbetween a few nights back and now after having seen the entire thing, i'd put it in my top 10 TV shows.
It's phenomenally written throughout, has consistent characterisation and development and never gets too over the top. It flies in the face of slickly produced procedural crime dramas and nothing is ever neatly wrapped up, just like in reality.
The anti-hero Ray is delightfully simple and complex at the same time - he has a strict life ruleset he rarely every deviates from. He shows love and compassion to those he cares for and switches off emotion for his criminal life in an instant.
It has one of the most satisfying endings to a TV show i've seen - effective, tense and complete, shame it only ran 3 seasons.
There is going to be a wide open gaping hole that will be hard to fill now this has ended.