The beautiful and arresting new upmarket thriller from the author of The Girls of Summer.

In the heat of summer, the past can become hazy. . .

For twenty years, Nina Drayton has told herself that she must have seen her sister, Tamara, being murdered by the family babysitter - Josie Jackson. That she doesn't remember it because she was five, and amnesia is a normal trauma response.

But now, with the anniversary of Tamara's death approaching and true crime investigators revisiting the case, Nina finds it harder to suppress her doubts. Returning to her family's sparkling villa on the Cote d'Azur for the first time since the murder, she wants to uncover more about the summer that changed so many lives. Because if she was wrong, then she sent an innocent woman to jail - and the real killer is still walking free.