Megan Abbott's "Bury Me Deep" (Simon and Schuster) is the best of her four books so far, no mean feat, that. It's based on the true story of Winnie Ruth Judd, who became infamous in the '30s as the Trunk Murderess. Megan captures the flavor of depression-era Phoenix beautifully, and supplies a plausible (fictional) solution to the question of whether Winnie did it and why. But the real triumph of the book is Winnie's fictional stand-in, Marion Seeley, and her intense relationships with the two women who will end up in those notorious trunks, and with Joe Lanigan, a wealthy businessman who charms the step-ins right off her.
So go to your local independent bookseller and buy the damned thing already.