In the future city "Fantasy Capital", memories have become commodities that can be extracted, traded and tampered with. Lin Jing is a top "memory broker". He walks among the lights and shadows of the city, retrieving or erasing the past for his clients. He is calm and professional, but he is troubled by his blank past. One day, a mysterious woman named Su Wei brought a strange commission: to find the memory of a "non-existent lover" in her mind. This seemingly absurd business involved Lin Jing in a huge whirlpool of conspiracy. Every fragment of memory that is picked up is like a sign pointing to the abyss, not only leading to the truth that can overturn the entire city, but also leading to his own forgotten and deadly secret.