Hannibal - Season 1 Episode 5

A murdered couple is found in a motel room, posed in praying positions with the flesh of their backs opened and strung to the ceiling to give them the appearance of wings. Using hairs collected from the motel pillow, the BAU team discover several medications used to treat brain tumors in the killer's bloodstream. Graham surmises that the killer is transforming his victims into guardian angels to watch over him because he is afraid of dying in his sleep.