Excellent

Just completed watching the first series again and it is hard to believe with the current selection of cr"p the BBC offer us that they used to invest in and make quality like this.

For me it is the best drama series they have ever done. The writing is superb and the acting exceptional.

Thought provoking, intelligent and witty, it leaves you thinking for ages afterwards.

The first series was definately superior but the second series was still very good.