Very good, despite the obviously small budget and short length of episodes, but then it was made in the 1970s when money was tight. Good cast and written by one of televisions most prolific writers Ian Kennedy Martin.
I only have one question, why is it advertised on Amazon and IMBD etc with a still from a completely different series? The photo used is of Diana Coupland and Anthony Bate in “Grady” made in 1970.