After Nessa James's husband dies and her twin daughters leave for college, she's left all alone in a trim white house near the ocean. In the quiet of her late forties, the former nurse begins to hear voices. It doesn't take long for Nessa to realize that the voices calling out to her belong to the dead-- a gift she's inherited from her grandmother, which comes with special responsibilities. On the cusp of fifty, suave advertising director Harriet Osborne has just witnessed the implosion of her lucrative career and her marriage. She hasn't left her house in months; from the outside, it appears as if she and her garden have both gone to seed. But Harriet's life is far from over-- in fact, she's undergone a stunning and very welcome metamorphosis. Ambitious former executive Jo Levison has spent thirty years at war with her body. The free-floating rage and hot flashes that arrive with menopause feel like the very last straw-- until she realizes she can channel them, and finally comes into her power. Guided by voices only Nessa can hear, the trio discovers a teenage girl whose body was abandoned beside a remote beach. The police have written the victim off, but the women refuse to buy into the official narrative. Their investigation leads to more bodies and the town's most exclusive and isolated enclave, a world of stupendous wealth where rules don't apply. With their newfound powers, Jo, Nessa, and Harriet will take matters into their own hands.