Rose Madder is an excellent read, I can't recommend it enough. It starts off rather slow, but Rose's journey from Buffalo to Chicago (for some reason the names of the cities are never mentioned but it is wasy to work out with a map and city references etc.) and how she copes in her new life are fascinating. Then, in the second half of the book, the husband she was fleeing from tracks her down and kills anyone who gets in his way. In creating Norman Daniels I think King has created one of his mightiest monsters - far scarier than the vampire in Salem's Lot, the cop in Desperation or even Randall Flagg.
The descriptions of Norman's killing spree in Chicago do not make for easy reading, and is some of the most grizzly and disturbing stuff I have ever read by King. The only odd thing is the supernatural element to this book, it is totally unexpected (and initially unwelcome) but doesn't take up too many pages. Rose Madder would make an awesome and terrifying film, with or without the supernatural stuff, and I found I cared for what happened to Rose much, much more than I cared about Jessie in Gerald's Game or Dolores Claiborne, as her development is gradual and enormous.
One of King's better works from the 1990's.