A murder leads World War I nurse Bess Crawford into the clutches of a wily killer.

Tending to the soldiers in the trenches of France during the First World War, battlefield nurse Bess Crawford can't help but notice the photo of a young pilot's wife every time she tends to him. But then at the railway station, in a mob of troops leaving for the front, Bess glimpses a familiar face--the pilot's wife? Back in France, Bess sees a newspaper with a drawing of the woman's face on the front page, and is soon on the search for a devious and very dangerous killer.

Nurse Bess Crawford finds herself involved in the search for a devious and dangerous killer in 1917 London after a woman she recognized from a wounded soldier's photo is found murdered.