For readers of Hidden Valley Road and Patient H.M., an "intimate and compassionate portrait" (Grace M. Cho) of the Genain quadruplets, the harrowing violence they experienced, and its psychological and political consequences, from the author of The Unfit Heiress. In 1954, researchers at the newly formed National Institute of Mental Health set out to study the genetics of schizophrenia. When they got word that four 24-year-old identical quadruplets...