When you watch a great drama on Netflix you have a conflict over its ending. Of course, you want to get to the end to find out what happens, how all the stories come together, and what happens to the characters. Sometimes, though, it’s so good and enthralling that you want to be able to keep watching it and wish it wouldn't end. A new season is the obvious answer.

That was very much the case for Black Doves. The Netflix drama was released late last year and captured a lot of attention. It was a great mix of a thrilling story, some festive elements due to its Christmas in London setting, and, of course, a brilliant cast.

Led by Kiera Knightley and Ben Whishaw, there were also strong roles for Sarah Lancashire and Andrew Buchan. Tracey Ullman also makes a dramatic late appearance in the show. The names...