The daughter of a distinguished soldier, Bess Crawford follows in his patriotic footsteps, volunteering to serve her country as a nurse during the Great War. In 1916 she promises Lieutenant Arthur Graham that she will carry his dying request to a brother.
When Bess arrives at the Graham house in Kent, Jonathan Graham listens to his brother's last wishes with surprising indifference. Neither his mother nor his brother Timothy seems to think it has any significance. Unsettled by this, Bess is about to take her leave when sudden tragedy envelops her.
She quickly discovers that fulfilling this duty to the dead has thrust her into a maelstrom of intrigue and murder that will endanger her own life and test her courage as not even war has.
