“THIS is a true story. What follows is based on extensive research, interviews and published accounts.

“Some scenes have been created for the purpose of dramatisation.”

So begins Appropriate Adult, ITV1’s two-part Fred West drama.

Or rather the story of how trainee social worker Janet Leach was plunged into the nightmare world of serial killers Fred and Rose West.

I watched both 90 minute instalments of the two-part production in one sitting earlier this month and was hugely impressed by the way it had been handled.