In this gripping episode, we unravel the haunting stories of Lucy Letby and Beverley Allitt, two British nurses who turned from caregivers to killers. With shocking parallels in their motives, methods, and betrayal of trust, Letby and Allitt's cases reveal dark patterns of behavior among healthcare workers turned murderers. Discover how Letby may have followed in Allitt’s footsteps and examine the warning signs missed along the way. Join us as we delve into the chilling psychology behind these killer nurses and what their crimes mean for patient safety.