After every war there are stories that are locked away like bluebottles in drawers and kept silent. But sometimes the past can return: in the smell of carbolic soap, in whispers darting through a village after mass, in the colour of an undelivered letter.

Jeanne Nerin and Marie-Angèle Baudry grow up, side by side yet apart, in the village of Ste Madeleine. Marie-Angèle is the daughter of the grocer, inflated with ideas of her own piety and rightful place in society. Jeanne's mother washes clothes for a living. She used to be a Jew until this became too dangerous. Jeanne does not think twice about grasping the slender chances life throws at her. Marie-Angèle does not grasp; she aspires to a future of comfort and influence.

When war falls out of the sky, along with it tumbles a new, grown-up world. The village must think on its feet, play its part in a game for which no one knows the rules. Not even the dubious hero with 'business contacts' who sweeps Marie-Angèle off her feet. Not even the reclusive artist living alone with his sensual, red canvases. In these uncertain times, the enemy may be hiding in your garden shed and the truth is all too easily buried under a pyramid of recriminations.

Michèle Roberts's new novel is a mesmerising exploration of guilt, faith, desire and judgment, bringing to life a people at war in a way that is at once lyrical and shocking.