The Deep is a vivid, accomplished tale of twin sisters caught up in the mania that was World War I. The year is 1918. Esther and Ruth, living a life privileged and protected, embark upon a journey to France that will profoundly affect their relationship with each other, those they leave behind and those they have yet to meet. In France, their experiences bring them face to face with the horrors and tragedy of war, but also expose them to a world alive with drama. Mary Swan's ability to create the images and atmosphere of this strange world is her greatest strength.