Exorcist Judge Bao.

The prince is murdered at midnight. It's suspected that it was done by the Cat Monster. Immediately, rumors run wild and everyone is jittery. Judge Bao is ordered to solve the case. With the help of the Monster Hunter Kui Fujun and the Imperial Guard Qiao Ji, he discloses the intrigue behind the case and solves the case of "the prince being replaced by a leopard cat" of six years ago.