They survived the war - but are they prepared for the fight at home?
 
In the aftermath of the First World War, the Cumbrian village of Waterbeck celebrates the return of its young men. But not all those who fought returned intact... Mercy Appleby, her husband confined to a psychiatric asylum, avoids the celebrations, though enterprising Frank Holland, who has always burned a candle for her, convinces her to attend the celebrations at Waterbeck Hall. When a young woman is found murdered amidst the revelry, suspicion falls on several of the men.
 
As the investigation unfolds, secrets are revealed, and Mercy finds herself caught up in a dangerous game of cat and mouse. Will she be able to clear the innocent and bring the true killer to justice, or will she become the next young woman to die?