The whole family of the bride Yuan Rui was killed while in the wedding room, but she was saved by a masked man. A year later, Roy learns from information dealer Bao Dating that his father killed a thief in order to save people. With Bao Dateng's help, Rui searched for the enemy's weakness and set foot on the path of revenge.
In Republican Shanghai a handsome monster hunter Yu Wen seeks for another beast in the Grand Hotel. When the monster attacks Gu Qing, Yu Wen surrenders from the sky and interrupts the public confession of a wealthy detective, Tian Ming. The three of them are involved in a series of supernatural cases. All the clues point to a legend - the beast has returned to earth and a mysterious manipulator has surfaced....