Grace Marks has been convicted for her involvement in the vicious murders of her employer, Thomas Kinnear, and Nancy Montgomery, his housekeeper and mistress. Some believe Grace is innocent; others think her evil or insane.
Kind of a prequel/sequel to Oryx & Crake, but you don't need to read that one to appreciate this one. I've never read a Margaret Atwood book I didn't like. This is one of her bleak dystopian future sci-fi books, but somehow manages not to be depressing.