Britain’s most prolific female killer. That’s one description of Bev Allitt. But to the families whose babies and children she murdered, she is a monster – the embodiment of evil. And to those who seek to analyse her, an enigma. Allitt was a pathological liar who was allowed, by a series of grievous errors, to join the nursing profession. She claimed her first victim – a seven-week-old baby – within days of starting work at Grantham Hospital in Lincolnshire. Assigned to the children’s ward, children became the targets of her perverse personality disorder – Munchausen’s syndrome by proxy. Allitt murdered four babies and children. She tried to kill three others and caused a further six grievous bodily harm. Allitt’s crimes spanned just three months – February to April 1991. In this episode, we go beyond the wilting floral tributes and sympathy cards. We revisit Allitt’s crimes with archive recordings. And we give a chilling insight into the grotesque mind of Beverley Gail Allitt – the killer nurse. Warning: contains testimony you may find upsetting. See our website https://psycho-killer.co for videos, photos and articles about our investigations, plus profiles of the Psycho Killer team. Acknowledgements: ITV, World In Action - Murder on Ward Four; ITV, Trevor McDonald and the Killer Nurse; Nick Davies/Chatto Press, Murder on Ward Four, The Story of Bev Allitt, and the Most Terrifying Crime Since the Moors Murders.