Former blues singer Ruth Arbuthnot should be enjoying the life she has built as the widow of an English lord and the head of a successful business. Instead, her nights are tormented by vivid dreams of two men struggling by a pond—dreams that always end with one man coming for her. When anonymous letters begin to arrive, Ruth realizes the danger may be far more real than she imagined.

Desperate for answers, she turns to her granddaughter and her granddaughter's ex-fiancé for help. But as they dig deeper, Ruth makes a chilling discovery: the dreams are not dreams at all, but buried memories someone is determined to keep hidden. As old feelings reignite and the truth edges closer, Ruth finds herself drawn toward a killer who will stop at nothing to silence her forever.