This is a perfect summer read.
The twists and turns had me snorting, occasionally gasping coz I so did not see THAT one coming, and always wondering what the hell was going on. Some of the characters were deliciously nasty, and the bitter dissection of a marriage was laser-sharp. It's a funny and often scathing commentary on marriage, self-delusions, romanticism, consumerism, Nancy-Grace-land, urban vs suburban. Oh it gets so dark, yet still I kept grinning and smirking through the whole book.
Advice: do NOT look at the table of contents, don't look ahead. Squint your eyes as you go past those spoilers. Enjoy the ride.