Former detective Zhao Chengxuan, who was wrongly imprisoned for seven years for an old case, received a call from his former partner Lin Keqing on the day he was released from prison. A newly discovered corpse was committed in exactly the same manner as that unsolved case. Is the murderer coming back, or is someone deliberately imitating it? When the gears of truth begin to reverse, he must use his once-cuffed hands to tear through the layers of fog, and amidst everyone's doubts and pursuits, he must restore justice for himself, the dead, and the buried seven years.
