There is a significant rise in the number of deaths on the neonatal unit at the Countess of Chester Hospital in the summer of 2015. Between June 2015 and June 2016 there were 17 deaths compared which a normal rate of around 3 deaths per year. In November 2020 nurse Lucy Letby is charged with murder in relation to seven of them, despite there being more feasible explanations for the deaths such as the frequent sewage problems, the reported ‘chaos’ on the ward and suspected medical negligence. And what about the other ten deaths?