Linchuan City, a "lightless city" where the truth is concealed by neon lights.
A series of old cases is restarted, and detective Shen Yan of the special case team is calm and restrained, firmly believing that the law can illuminate the darkness;
Lin Zhi, the owner of a psychological clinic, is a former criminal and the only witness to an old case. He is smart and paranoid. He does not believe in good or evil and only believes in himself.
With a piece of paper, they were forced to cooperate——
Shen Yan wants to solve the case, Lin Zhi wants to clear his name;
Shen Yan wants to uphold justice, while Lin Zhi wants to reveal the truth.
But the deeper they go, the more they discover:
The so-called justice is the edited memory;
The so-called truth is a sharp knife that pushes each other into the abyss.
When the experimental files were exposed, Shen Yan was the "perfect work" and Lin Zhi was just a "failure and defective";
When guns were pointed at each other, Shen Yan asked in a trembling voice: "Did you ever want to kill me?"
Lin Zhi's smile was bloody: "Yes, but I can't do it every time."
From confrontation to side by side, from temptation to redemption,
They betrayed each other in the lightless city and became each other's only light.
——"If I die, I will leave my memory to you."
——"I don't want your memory, I want you to live."
Even if you forget me, I will find you again;
Even if there is never any daylight in this city,
I also want to be in the ruins,
Light the last lamp for you.
Intent: Memory can be tampered with, identity can be erased, but "I still choose to believe in you" - in the deepest darkness, two people abandoned by the world use each other's existence to prove: Humanity is damaged, but it can still save itself; justice has light, and it can also be ignited by our own hands.