From the bestselling author behind the addictive, EMMY and GOLDEN GLOBE-winning HBO sensation BIG LITTLE LIES comes a cocktail of family, friendship, and the fear of what could have been . . .

''Perfect summer read'' REESE WITHERSPOON

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Six responsible adults. One day that changes everything.

''This is a story which begins with a barbecue in the suburbs . . .''

In just one evening, a lifelong friendship will be in tatters, a marriage on the rocks and an innocent bystander dead.

In just one evening, six lives will change for ever.

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''Filled with so many twists and turns. Keeps you guessing until the very end. Perfect summer read'' Reese Witherspoon

''You must clear a reading slot for this novel . . . Truly Madly Guilty is as brilliantly accomplished as it is dark, twisty and compulsive. No wonder Reese Witherspoon is such a huge Moriarty fan'' Heat

''Straight-from-life characters, knife-sharp insight and almost unbearable suspense will have you racing through it'' Good Housekeeping

''A riveting drama packed with suspense and secrets'' Woman & Home