Its also an examination of childhood and time, and what happens to trauma with time.

Its got quite a lot going for it other than the horrific central axis of the drama.

He said: Theres a lot of other stuff going on reams of pages in McEwans brilliant writing.

I find that a real treat and, in this instance, Ive been a McEwan fan.

There were moments when I wondered whether I was doing enough, he toldDen of Geek.

The engagement with the material was there but it felt very strange.

He said: If I was doing this twenty years ago itd be very different.

The Child In Time airs on Sunday the 24th of September at 9pm on BBC One.