When time begins to flow backward, memory becomes the most dangerous currency. Former special soldier Qi Lie and painless researcher Su Tang are forced to join forces to uncover the truth about a well that can trace back life and death. But every time they touch the well water, they lose a part of their life. Gravekeeper Lao Scar hides a plan to restart civilization, the bionic girl Bai Yuan is evolving a real soul, and Qi Lie's old comrade Tie Miao is heading towards the wellhead with explosives - who is the final salvation in the apocalypse? Who is the new god chosen by the well?
