Lu Mingchuan was once a legend in the police world, but he left his job due to an unsolved serial murder case. Many years later, a brutal murder case once again involved him in the puzzle, and he formed a temporary partner with detective Cheng Lan to jointly uncover layers of mystery. Behind every seemingly isolated case, there is a greater conspiracy and dark force hidden. Not only do they have to solve the mystery, but they also have to face the abyss of psychological manipulation and crime. The truth is far more deadly than they imagined.
