Chen Ji, a former psychological profiler at the Public Security Department, accidentally received a mysterious life-binding box while investigating a bizarre sudden death case, and was forcibly involved in the cycle of death called the "Grey Realm". This life box turned out to be the core fragment of the "Anchor of Time" that stabilizes reality, and he instantly became the prey of all forces - the official cleanup organization "Cleaners" regarded it as a hidden danger and wanted to eradicate it; the radical alliance "The Diggers" coveted the power of the fragment and pressed forward step by step.
In a desperate situation, he formed an alliance with the cold and sharp forensic doctor Su Wan. One uses logical insight to dismantle the loopholes in the rules of the Gray Realm, and the other uses forensic skills to tear open the path of life and death. In the double pursuit of reality and the Gray Realm, the two gradually come into contact with the historical tragedy of the "Silver Dawn", the secret experiments of the ancestors surnamed Su, and the core truth of the origin of the Gray Realm.
When the rules of time collapse, the boundaries between reality and the gray domain melt, and a global crisis comes. Chen Ji must use psychological profiling as a blade and life box fragments as anchors to dissect the chaotic rules of the God of Time. In the desperate game of "purification" and "plunder", Chen Ji must join forces with Su Wan to find a third way and reconstruct a balanced new order for all "crossers".
