On the night of the power outage, Shen Zhiyao saw his sister smiling among the ruins. But my sister obviously died in the fire three years ago. When city-wide blackouts become a regular occurrence, every dark shadow hides the unspoken truth. Former psychologist Shen Zhiyao and retired technician Ji Huai are forced to reunite, and nurse Zhou Xu's confession letter, girl Jiang Zhi's whisper of electricity, Granny Chen's Bai Ju and Lu Zhao's approval stamps are slowly twisting a concealed electricity conspiracy into a fatal knot.
