Part One: In a death-camp in war-torn Poland, a young doctor and nurse fight to save lives. As their relationship blossoms, they risk death daily by joining the camp resistance. Liberation plunges them from one nightmare into another as they are separated, the doctor carrying with him stolen Nazi secrets and a unkept promise. Part Two: In present-day England, the doctor's granddaughter, intrigued by an enigmatic carving, begins a journey of discovery. What was it that gave her grandfather nightmares? Can she keep his promise and reveal his stolen secrets to the world?