The compelling and gripping new novel from the author of Love, Iris and The Family Holiday'A gorgeous read. Beautifully insightful' JANE FALLON 'A fascinating insight into contemporary coupledom and family politics. A pageturner' DAILY MAIL 'Perfectly observed, a reflection of real life we can all learn from' KATIE FFORDE 'A frank and believable account of friendship and a marriage under stress' ADELE PARKS, SUNSometimes friendship crosses a line . . . A group of close friends, their bonds forged at the nursery gates two decades ago, have celebrated, commiserated and grown together: they thought they all knew each other so well.Until the affair. Now a crack appears in everything. Could one betrayal really destroy it all?