A dark secret from their teenage years comes back to haunt two women, in this novel of psychological suspense by the author of Keep Her Safe. Long ago, Nicole and Emily lied about their whereabouts and witnessed a terrible accident. Neither of them took action. Now Nicole is a wife and mother who follows the rules and strives to make up for her mistake. But Emily, a teacher, believes life is too short for regrets and refuses to blame herself. When their old classmate Bex dies, the past is stirred up once again as they begin to receive anonymous texts from someone who knows what they did. Each of them spirals into risky and reckless behaviour, and their friendship is strained to breaking point. There's more to the story-but can the women unearth the full truth about that day before it destroys them both?