A breathtaking, heart-pounding, dark debut, sure to delight fans of The Girl on the Train and Before I Go To Sleep.

'Why won't Mummy wake up?'

When Anna, a much-loved teacher and mother of two, is left savagely beaten and in a coma, a police investigation is launched. News of the attack sends shock waves through her family and their small Swedish community. Anna seems to have had no enemies, so who wanted her dead?

As loved-ones wait anxiously by her bedside, her husband Erik is determined to get to the bottom of the attack, and soon begins uncovering his wife's secret life, and a small town riven with desire, betrayal and jealousy.

As the list of suspects grows longer, it soon becomes clear that only one person can reveal the truth, and she's lying silent in a hospital bed...