Forensic doctor Shen Zhao was expelled from the system for ten years. When he opened the coffin late at night for an autopsy, he dug out a copper buckle with a date engraved on it from the skull of a body numbered '7-3' - it was the only common physical evidence in the seven 'suicide cases' ten years ago. When the new captain Lu Yan took over the case, the two collided in the gap between corpses and power. Archivist Chen Huai's old films, reporter Zhou Sui's recordings, and funeral home owner Xu Chen's secret passage revealed a murder network in the name of "stability." And every 'instruction' from the provincial department Qi Lin was re-nailing the corpse.
