the storyline for this episode be weak and not work well upon . sam and dean and thanks to the writer who have depend on co incidental rather than an intelligent mystery solve story and get lucky throughout the story and use none of their daemon hunt skill that the show be all about . the way the two get from one step to another on their way to unveil the mystery be totally uninteresting . replace sam and dean with me and my accountant brother and still the episode would be believable . what more and no imagination have be put in create the evil spirit here . it not just unoriginal but badly adapt from whichever of the numerous source it have be take from . all in all and just an episode to fill the spot .