In 2053, the Spike virus broke out and the world's population plummeted.
The human survivors huddled in the steel behemoth known as "Winter Hills." People in the upper city wear blue codes and red codes and have no worries about food, clothing and clothing; people in the lower town wear black codes and live like mice in the ruins of neon lights and cheap alcohol.
Shi Shuo, codenamed "Black Knife", is the top bounty hunter in Xiacheng District. In order to escape from such a chaotic life with her companions, she accepted a commission. She thought that this commission would be the same as before, until she discovered that the "live person" she sent into the secret door of No. 703 Every week was sent to a laboratory that should not exist.
The builder of the laboratory, the founder of Dongqiu, Dongzhu, was once everyone's hope for survival.
"Do you want to save 160,000 people with 40 people, or watch everyone die?" He said to his subordinate Via.
Via had been his most loyal lieutenant. She admired him until she saw the experimental subjects with her own eyes and heard their vague pleas for help - she finally found that she could no longer convince herself.
She wanted to report everything. At that time, she will also tell more lies in order to cover up the things she reported.
When secrets begin to bleed, when the concrete walls of Winter Hill cannot shut out the echoes of truth - who can make it out alive?
Purpose: When survival itself becomes a transaction that continuously degrades morality, is what we lose in the transaction more precious than life itself?
