In the winter of 1918, on a freezing night in a Shanghai alley, Shen Yanzhi, the illegitimate son of Green Gang boss Shen Xiaolin, is abandoned on the street by his father’s principal wife. As he lies on the verge of death, Lin Weilan, a general’s daughter who was born into this world with the soul of Lin Wei, a top modern cardiothoracic surgeon, reaches out to help him. She takes off her wool cloak to keep him warm and gives him a hot snack to keep him alive. The faint light of those three days together becomes the only salvation of Shen Yanzhi’s childhood.