Danger and violence have always been part of Sue Dalston's East End upbringing. Unloved by her mother, abused by her father, and brutalised throughout her entire marriage, she smashed her husband's skull in a final act of desperation. All that keeps her sane is knowing that she's done it to protect her four children. At last, they are safe from harm. When she is celled up with murderess Matilda Enderby, their fates become inextricably linked. And no one - least of all Sue - could have predicted the consequences...