This is very short story. John Glass, the main character, is a journalist who was once revered, tasked with writing the biography of his Father-in-Law, a colourful character but with skeletons in his closet. The tale opens with Glass recruiting a researcher to assist with the book, and everything unravels from there, once that researcher is murdered.
The eventual resolution comes as no real surprise, but I was left with the impression that the writer had something to say, and couldn't quite make up his mind what sort of book he should use to say it. There are severaL treads that are left hanging - the relationship with the investigating officer is clunky to say the least - and the stereotypical characters don't help.
Either the book is too long and should have been a short story, or too short, because the pace destroys any real character development.
Whatever, if you do decide to read the book, you won't waste too much of your time making up your own mind on it's merits