Jia-min, que nació sensible a lo paranormal, intenta convocar a "Yi-A-Gu" con dos serpentinas. Huo-ge ayuda a Jia-min a dominar el espíritu cuando la situación se sale de control. Huo-ge posee poderes sobrenaturales, pero perdió su voluntad de exorcizar demonios durante una batalla con el demonio tailandés hace cinco años. A medida que continúa la ola de suicidios, la aldea se ve sumida en el caos. Está por comenzar otra batalla.
Chi-yi is a veteran cop, who values his own safety more than anything else and is therefore infamous for his cowardice and poor efficiency at work. Yi-ping, on the other hand, has just graduated from the police academy and is more than ready to prove herself regardless of any risks. Daughter of the head of the National Policy Agency, Yi-ping is secretly kept away from danger by being appointed to team up with Chi-yi. Starting from a seemingly pointless case of a puppy’s accidental death, the essentially incompatible pair unexpectedly dig up the clues to a series of mysterious deaths.
