Nathalie von Zelowitz, a psychologist, recounts her ten-year experience working with 'Bernard,' a cannibal killer incarcerated in a high-security psychiatric facility in France. Their sessions, spanning from 2011 to 2021, delve into Bernard's traumatic childhood, which included being abandoned by his father and abused by caregivers. This tumultuous upbringing contributed to his eventual descent into violence and cannibalism, culminating in the murder of a fellow homeless man, David, in 2009. Bernard described the act as a trance-like rage, after which he cooked and consumed David's heart. Throughout their discussions, Bernard expressed a longing for recognition and understanding, feeling that he had always warned others about his dangerous tendencies but was ignored. He firmly believes he is not mentally ill but rather an 'exceptional guy,' a sentiment that the French legal system echoed when it found him criminally responsible for his actions. His future remains uncertain, as he must demonstrate mental stability before any potential release. Bernard's story is a disturbing exploration of human depravity, trauma, and the complexities of identity.