Based, as the opening credits claim, on ‘many real stories’, the territory of child pornography is obviously rocky, but one that’s glaringly unexplored and un-understood.  I’m glad someone’s handled this well, and in this medium.

I did though find myself wanting more of an insight into his predicament.  The clue was in the title, but however fascinating and important the partner’s experience is, it’s far more guessable than the perpetrator’s.  But maybe that really would be too gritty for a BBC drama.