From the bestselling author of The Ex and Those Other Women comes a thrilling family drama about the secrets we keep, the lies we tell and the truths that won't stay hidden.

Everybody's hiding something ...

Jill, her three sons, their wives and children are driving in convoy on Christmas Eve. But something sinister is simmering behind their happy smiles.

Mimi is struggling with her new twins, but at least a glass of wine smooths out life's jagged edges. Andrea's starting to wonder if her marriage is as happy as she'd thought. Darren is reeling from a surprise request and teenager Callie has become increasingly withdrawn.

On the way to their holiday house, a terrifying car accident devastates them all. But someone unexpected was in one of the cars. No one is searching for them. And their time is running out.

You Need to Know is a dark domestic drama about family secrets and lies, fractured relationships, tragic mistakes and the ultimate betrayal.

"Nicola Moriarty has a gift for domestic drama, cracking pace, and skilful narrative timing." Kerryn Goldworthy, Sydney Morning Herald

"Dark, twisty and utterly enthralling, You Need to Know is a gripping domestic thriller [and] yet another unputdownable read from the very talented Nicola Moriarty." Better Reading

"Moriarty has delivered another gripping domestic drama about secrets, lies and fractured families. She builds the tension so expertly, with twists and turns leading towards one cracking end, that you may well need to see a chiropractor afterwards." The Australian

"A tense, well-crafted storyline, interesting, multifaceted characters, and a sensational climax." Book'd Out