When Jackie Blue, a youthful street musician, checks into rehab, he exhibits signs of mental illness characterized by prior life experiences and time travel. While undergoing psychiatric treatment, Jackie hints that he is possession of the Holy Grail, which, for purposes of concealment, has been reconfigured into a trumpet. When Jackie plays the magical trumpet, the troubled souls within the clinic experience soothing, and, in some instances, miraculous relief. Is Jackie simply delusional; or, is he possibly an unrevealed seer and prophet?