When the Rosens moved to New Rochelle in 1973, Jonathan Rosen and Michael Laudor became inseparable. The boys were best friends and keen competitors, and, when they both got into Yale University, seemed set to join the American meritocratic elite. Michael blazed through college in three years, graduating summa cum laude and landing a top-flight consulting job. But all wasn’t as it seemed. One day, Jonathan received the call: Michael had suffered a serious psychotic break and was in the locked ward of a psychiatric hospital. Diagnosed with paranoid schizophrenia, Michael was still battling delusions when he traded his halfway house for Yale Law School. Featured in The New York Times as a role model genius, he sold a memoir, with film rights to Ron Howard. But then Michael, in the grip of an unshakeable paranoid fantasy, stabbed his girlfriend Carrie to death and became a front-page story of an entirely different sort.