When young teacher Anna Blackwell is found dead in her home, the police think her death was suicide or a tragic accident. After all, Stonebridge is a quiet country village, where murders just don't happen. But Detective Inspector Jimmy Perez soon arrives and is asked to look into the case by his ex-wife, Sarah. The local gossips are saying that her new husband, Tom, was having an affair with Anna. Could Tom have been involved with her death? Sarah refuses to believe it, but needs proof. Anna had been a teacher. She must have loved kids. Would she kill herself knowing there was nobody to look after her daughter? She'd seemed happier than ever before. And to Perez, this suggests not suicide, but murder.