The books are fast paced page turners, having said that some of the crimes described are pretty horrible so it doesn't surprise me that those who haven't read the books find the programme a turn off. I'm not sure it's transferring that well to the screen. Personally I'm finding a lot of the characters miscast, Because there have been so many books in the series there has been much in the way of character development so I'm probably like a lot of other readers in that I've got a picture in my minds eye of how they should be. I like John Sim as an actor, he probably isn't too unlike Roy Grace, I read that he'd moved to Brighton so I'm wondering if he did that when he was cast in the part. I don't think the programme has captured the dynamic between Grace and his sidekick Glen Branson, their relationship is very close, throughout the series they support each other through many personal ups and downs, what I thought was lacking most of all was the banter and joshing Glen has with Roy Grace. Norman Potting, is described as an overweight slob in the books and then this slim actor appeared last night, Bella Moy, from what I remember always had a box of Maltesers on the go, I think she was described as more rotund than the actress who was playing her. All in all I don't think the programme has captured the essence of the books imo.
Shysal, Grace's wife Sandy disappears suddenly without any explanation, presumed dead. In the books that is a very slow unfolding narrative which is slowly revealed in snippets book by book. I can't tell you too much more because it would be a spoiler. However, Grace does fall in love, marry and have a child. The woman he marries is called Cleo and she is a pathologist, I can't remember when she comes along, I did think she might have featured last night. When he meets her he certainly cheers up, even if he still has to solve horrible grisly crimes.