Three years ago, the witnesses in the unsolved case died in mysterious and tragic deaths one after another. Lu Yan, the former sharpshooter of the crime team, and Su Wan, the genius trace profiler, were forced to form the most tacit partnership. They pursued the murderers on both fronts amidst serial executions, molestations, and pressure from high-level officials. The silent truth that had sunk into the darkness echoed.
