Diary is a weird little tale. Its about a woman dealing with the aftermath of her contractor husband's failed suicide and the discovery that he's left nasty messages scrawled on the walls of the houses he's done work on. About halfway through you get a good idea of the general direction the story is heading in. And despite the fact that this isn't going anywhere happy, there's no getting off this ride.
This is the first Palahniuk novel I've read. A few passages made me squirm (there's a few painful scenes involving old junk jewelry), but I adored the parts where they explained the ingredients of different colors of paint.
The final page of this book is a clever little clincher. I give it a 6.5.