A Disturbed Mind: Behind the Serial Killer's Mask

'A Disturbed Mind: Behind the Serial Killer's Mask' is a psychological deep dive into serial killers and the mechanisms behind their actions, written by criminal psychologist Florence McLean. Published in 2025, the book sets out to give readers an insight into the patterns and character traits that criminologists and psychologists have identified through decades of research.

McLean draws on her professional background in criminal psychology to examine what lies hidden behind the serial killer's facade. The book analyses the traits these offenders have in common, their childhoods, the early warning signs in their behaviour, and the psychological disturbances that so often underlie what they go on to do.

Combining professional expertise with accessible writing, 'A Disturbed Mind' allows readers to understand the complex psychological dynamics that characterise some of the most famous serial killers in history. The book is aimed both at readers with a professional interest in the subject and at true crime enthusiasts looking for a deeper understanding of what creates a disturbed mind.