Five women, best friends for decades, meet once a month to talk about books ... and life, love and the jagged bits in between. Dissecting each other's lives seems the most natural thing in the world - and honesty, no matter how brutal, is something they treasure. But each woman harbours a complex secret and one weekend, without warning, everything comes unstuck. Izzy has to make a decision that will change everything, whilst Veronica, recently divorced and dedicated to raising the best sons in the world, has forgotten who she is. Xanthe, desperate for a baby, can think of nothing else, even at the expense of her marriage. When their circle begins to fracture, is their sense of sisterhood enough to keep it intact? How well do these tiddas really know each other?