This is the true story of Australia's worst convicted female serial killer, Kathleen Folbigg. Kathleen's children, Caleb, Patrick, Sarah and Laura Folbigg, died one by one over a 10-year period in similar circumstances - suddenly, unexpectedly and while sleeping. Each time, she raised the alarm to her husband, Craig, that they were not breathing. When the Folbiggs' marriage fell apart six weeks after the death of their fourth child, Craig was devastated. Then he discovered Kathleen's diary in her bedside drawer, filled with ramblings about losing control with the children, her 'terrible thoughts' and her fears she was her 'father's daughter'. Her father had been convicted of murdering her mother years earlier. The diary was the crucial evidence detectives had been searching for to confirm suspicions that the babies had been murdered. Kathleen Folbigg was jailed for thirty years. But after her conviction she and her supporters fought hard, protesting her innocence. At her trial she'd allowed her diaries to speak for her. They did, damningly. But what if she were able to explain what her entries really meant? Medical and legal experts revisited her case and brought pressure on the NSW attorney-general to order a judicial inquiry into her conviction. Finally, in 2019, Folbigg had the chance to explain in her own words what had happened to her children. This updated book takes us from the discovery of each of their bodies, through Folbigg's own tragic past, to her long-awaited explanation of what happened to Caleb, Patrick, Sarah and Laura. The outcome is a shocking, searing look into the mind of Australia's worst female serial killer.