This film sounds a warning that paedophiles are often the least likely people. It investigates a man who was a top-ranking consultant on child care and yet for 30 years has secretly abused that position of trust with his paedophile cravings. Unnamed until the programme is transmitted, the man - a former teacher - managed to keep his activities undetected by his colleagues - or if they suspected, they said nothing. They - as well as some of his victims and duped friends - are among those interviewed in the programme, which reveals the full extent of one man's double life as official child protector and secret child abuser.