On a chilly November morning, eighty-eight-year-old Iris Blum goes missing from Azalea Court, a six-bungalow development on the grounds of a long-closed state mental hospital. Her husband, Asher Blum, was the last head psychiatrist at the hospital and is writing a book about the treatment of mental illness. Their daughter Lexi, the neighbors, and police detective McPhee suspect Dr. Blum of being involved in Iris's disappearance. When the searches and interviews come up empty, the neighbors dig into the past—Asher's childhood experiences with anti-Nazi partisans in the forests of Poland, unethical practices at the mental hospital, and Iris's mysterious best friend, Harriet. The neighbors of Azalea Court, Lexi, Harriet, and Detective McPhee narrate this story together, uncovering ghosts, secrets, and lies.