In Xinhai City, where memories can be extracted, repaired and traded, Ling Zhou, a top memory restorer, lives in pain of being unable to piece together the broken memories of his late wife Wan Qing. He repairs other people's "golden ages" day after day, but he can only guard his own memory. Through an accidental restoration, he discovered an unnatural "digital imprint" in the memory crystal of his late wife. This clue was like a key, opening the door to a huge conspiracy. In order to pursue the truth, Ling Zhou embarks on a dangerous journey. What he will face is not only the mysterious organization that erases his memory, but also the tampered past and the prison in his own heart.
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