Jia-min, who was born sensitive to the paranormal, tries to summon "Yi-A-Gu" with two streamers. Huo-ge helps Jia-min subdue the spirit when the situation goes out of hand. Huo-ge possesses supernatural powers but lost his will to exorcise demons during a battle with the Thai Demon five years ago. As the wave of suicides continues, the village is thrown into chaos. Another battle is about to begin.
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.
