The case was closed, but for journalist Nancy Rommelmann, the mystery remained: What made a mother want to murder her own children?

On May 23, 2009, Amanda Stott-Smith drove to the middle of the Sellwood Bridge in Portland, Oregon, and dropped her two children into the Willamette River. Forty minutes later, rescuers found the body of four-year-old Eldon. Miraculously, his seven-year-old sister, Trinity, was saved. As the public cried out for blood, Amanda was arrested, convicted, and sentenced to thirty-five years in prison.

Embarking on a seven-year quest for the truth, Rommelmann traced the roots of Amanda's fury and desperation through thousands of pages of records, withheld documents, meetings with lawyers and convicts, and interviews with friends and family who felt shocked, confused, and emotionally swindled by a woman whose entire life was now defined by an unspeakable crime. At the heart of that crime: a tempestuous marriage, a family on the fast track to self-destruction, and a myriad of secrets and lies as dark and turbulent as the Willamette River.