'Somehow it seemed to him the only thing that would really solve the problem would be to return to the sea and find the old ring with their names and the wedding date engraved inside, in 22-carat gold, and put it on again and then the world would magically return to what it had been before. Many years before.

This did not happen.'

Thomas and Mary have been married for thirty years. They have two children, a dog, a house in the suburbs. But after years of drifting apart, things – finally – come to a head.

In this love story in reverse, Tim Parks recounts what happens when youthful devotion has long given way to dog walking, separate bed times, and tensions over who left the fridge door open.

Lurching from comedy to tragedy, via dependence, cold re-examination, tenderness and betrayal, Thomas and Mary is a fiercely intimate chronicle of a marriage – capturing the offshoots of pain sent through an entire family, when the couple at its heart decide it's all over.