In this fascinating yet deeply disturbing book, the journalist Robert Kolker burrows deep into the issue of nature versus nurture. As with his previous outing, Lost Girls , about a series of murders on Long Island, it’s a work of precise reportage: he spoke to all the surviving members of the Galvin family, including matriarch Mimi before her death in 2017, creating a startlingly intimate account of a family ruptured from within by forces they could not control. From the name of the Galvins’ street to their love of falconry, an exercise in controlling wildness, the material often has an uncanny, novelistic quality. At times it’s reminiscent of Jeffrey Eugenides’s The Virgin Suicides : an all-American family, an inexplicable contagion, a malignant turning inwards, all against a backdrop of respectable conformity.