Dedicated to helping the many wounded during the Great War, Bess Crawford receives a desperate request from a dying lieutenant while serving as a nurse aboard a hospital ship. "Tell my brother Jonathan that I lied," the young man says. "I did it for Mother's sake. But it has to be set right."
Back home in England, Bess receives an unexpected response from the dead soldier's family, for neither Jonathan Graham his mother nor his younger brother admit to understanding what the message means.
But the Grahams are harboring a grim secret, and Bess must, somehow, get to the bottom of it. It is her sacred duty to the dead, no matter how painful, or dangerous, that obligation might be.