I'm a big fan of Moriarty's book The Husband's Secret, but things get kinda out of hand with Moriarty's latest. The story revolves around a set of neighbors and friends who gather at an impromptu backyard BBQ where something goes horribly wrong. What goes wrong? Well, it's hinted at and skirted around for a couple of hundred pages. This definitely tested my patience.
Entertaining, but a bit too much with the endless foreshadowing and hint dropping. I would start with The Husband's Secret instead.