Rudy Gletz comes into possession of a magic trumpet and becomes the world's most famed musician. There's a price to pay, though. He has to kill to keep the magic going, driven by the ghostly apparition of the trumpet's former owner.
The "green ones", lizard-like beings, haunt the southern swamp country. Two sisters and a man they both love get drawn into a deadly triangle of intrigue and two of them will be claimed to join the ranks of the "green ones".