On June 20, 2001, five children were found drowned in a bathtub in a quiet Texas suburb. Their mother, Andrea Yates, confessed without hesitation. What followed was not a simple murder case, but one of the most disturbing and divisive legal battles in American history. Diagnosed with severe postpartum psychosis and schizophrenia, Andrea Yates stood at the centre of a question that unsettled courts, doctors, and the public alike, when does mental illness erase criminal responsibility? As prosecutors sought the harshest punishment and defence experts detailed a mind overtaken by delusion, the case forced the justice system to confront the fragile boundary between madness and murder. This gripping documentary traces Andrea Yates's life, her steady psychological collapse, the warning signs that were seen and ignored and the trials that reshaped how insanity is judged in America. Drawing from court records, medical testimony, and firsthand accounts, it examines not only what happened, but what might have been prevented. Clear-eyed, compassionate, and deeply unsettling, this book is not just about a crime, it is about the cost of misunderstanding mental illness, and the irreversible consequences of waiting too long to act. Read now to understand the case that changed the conversation on postpartum psychosis forever.