Britain has been gripped by horror by the recent conviction of a neonatal nurse called Lucy Letby, who murdered seven premature babies and attempted to kill six others at the hospital where she worked. In this episode we discuss this horrifying and tragic story and whether Letby could or should have been stopped earlier. Will this case damage trust between parents and patients, and the medical professionals tasked with looking after them? Is it actually possible to prevent the one-in-a-thousand psychopathic killers from getting into positions of power over vulnerable people? What unintended consequences might result in our efforts to protect ourselves from dangerous and rogue individuals like Letby? And how might our Christian understanding of evil help us cope with the horrifying truth that an ordinary and unremarkable nurse could also be Britain’s worst child serial killer?