In a desperate bid to escape the scandal and persecution that follow the unexpected death of her husband, Alicia Cornell flees to the small Cornish town of Poltreath in search of a safe haven. But it soon becomes clear that someone there recognises her - and is intent on blackmail. Suddenly, all the people she knows become suspects. Can it really be one of them? And if so, which one? Is her secret about to be exposed, just when she believed she was safe?