A professor of criminal investigation who studies criminal psychology, and the female captain of the Criminal Investigation Corps, jointly solved a number of murder cases, and gradually developed into a pair of heroes who uphold justice. But at the same time, they gradually discovered the connection behind their own lives and the terrible evil hidden behind them. The murderer hiding in the darkness gradually emerges, will justice finally be served?
Mission: Justice is never late, the case within the case is waiting for the truth to be revealed