I watched many of the series. They are long and dreary. Most crime mysteries have anger, sadness humor etc. These have no humor and only the bad qualities of humanity, cheating spouses, perverts, no morals and no conscience. There is a lot of gore and sexual suggestion in the the Ruth Rendell episodes. I don't know if that is the way the stories were written but that is how they are in the movies. One particular episode I did not watch all the way through had 2 men kissing which I find offensive. In general there are too many topics, too many subjects, too many people who have reasonable guilt to do the crime. The crimes ending leaves the person thinking "Couldn't they come up with a better ending?" I would prefer Agatha Christie any day. Rudell movies are nor for kids they have very violent content along with all of the above.
Wexford is a slightly better series by Rendell http://www.imdb.com/title/tt0166458/episodes