This is one of those books that Amazon kept recommending so aggressively that in the end I just gave in and bought it and I'm very glad that I did.
It tells the story of two women: Rose, who is in prison having been found guilty of causing the death of a young baby and Cate, the propbation officer who must decide whether Rose is freed on parole. Gradually Rose's tragic past is unravelled and the reader flits from sympathy to pity to disgust to sympathy again as her story progresses. The pace never flags. All the way through, I was second-guessing the twists, and the author often wrong-footed me yet it never felt contrived. The final twist, when it came, was unexpected yet rang entirely true, and made me want to turn right back to the first page to re-read the novel again, this time finding new and even more tragic resonances in the story.
The contrast between the claustrophobia of prison and the equally lonely yet physically expansive Suffolk seaside town of Lowestoft is brilliantly done. If I had any criticism of this novel it would be that there are numerous typos in the text, but that's a rap on the knuckles for the copy editor and the publisher, not the author.