In a merciless future, life is less than cheap for the artificial human slaves mankind cultivates. Twins Maré and Luna were born into this life and sold to Joss Breylin, a bitter man shattered by tragedy who vacillates between the doting parent he once was and tormentor of the girls in the present. To survive, they will have to navigate his unpredictable brutality, and whatever happens, no one will emerge unscathed when the sun finally sets on the path that is The Way of All Flesh.