What is it about Liane Moriarty's books that makes them so irresistible? They're just classic "domestic" novels about marriage, motherhood, and modern upper-middle-class family life, after all. And despite the fact that Big Little Lies is Moriarty's sixth adult novel (and it comes decades after the grandmother of this kind of thing, Bridget Jones' Diary), it is remarkably new and fresh and winning Set in an Australian suburb, Big Little Lies focuses on three women, all of whom have children at the same preschool. One is a great beauty married to a fabulously rich businessman; they have a "perfect" set of twins. One is the can-do mom who can put together a mean pre-school art project but can't prevent her teenage daughter from preferring her divorced dad. The third is a withdrawn, single mother who doesn't quite fit in. Right from the start--thanks to a modern "Greek chorus" that narrates the action--we know that someone is going to end up dead. The questions are who and how. Miraculously, Moriarty keeps this high concept plot aloft, largely because she infuses it with such wit and heart. She also knows not to overplay the message she's sending: that we all tell lies--to each other and, more importantly, to ourselves.