Shen Zhiyao reopens the sealed case file of a disappearance from seven years ago and discovers that her younger sister's death was no accident, but part of a meticulously woven conspiracy. The anonymous leads Jiang Linzhou provides point to secret dealings at the city's planning bureau. The forensic pathologist Lin Fei's silence, the fragments of dreams belonging to streamer Zhou Xu, and the scattered memories of retired police officer Chen Yan gradually piece together a vast web spanning the worlds of business, politics, and crime. As the truth draws near, every silent bystander becomes an accomplice, and she must set the spark herself and ignite the whole conspiracy.