I have just pre-ordered The Little Stranger by Sarah Waters. Due to be released on April 30th in the U.S., this promises to be a good ghost story, and I do love ghost stories!
For some reason I am unable to embed URLs in this post - I'll have to figure out what settings I need to change to enable embedding URLs. As soon as I figure that out, I will put up a link to an article in which Susan Hill gives her definition of a ghost story. Her The Woman in Black is one of my favorite ghost stories.