"Powerful, with deft touches of humanity in all it's guises. This wonderful 'vitrine' into the life of some extraordinary people, left me stunned, and (without wishing to sound shallow), a changed man. The vision of dr marsh at katya's mothers home, where he can't take his saddened eyes from the picture of the girl he had not been able to cure. One knows for sure that he thinks with regret every day about this little girl, like she was his only ever patient. I was reduced to tears. Very profound, and I am a richer person for having seen such a pure, unadultrated show of humanity. Well done the BBC."