Today's conversation explores one of the darkest and least examined chapters of modern history—and why it still matters.

My guest is Susanne Antonetta, author of The Devil's Castle: Nazi Eugenics, Euthanasia, and How Psychiatry's Troubled History Reverberates. In this powerful and deeply researched book, Susan examines how psychiatric institutions and medical authority were used to justify eugenics and mass murder under the Nazi regime—and how the echoes of that history continue to shape mental health care today.

This is not just a story about the past. It's a conversation about ethics, power, language, and what happens when care becomes control.