Cancer-terminal tycoon Peter Murdoch's secret Wexel Hall Pharmaceuticals lab has developed a blood clot infusion cure. They bread a strain, to examine it works optimally in snakes. Nevertheless, the original pair escapes, leaving a trail of corpses. Murdoch runs, instructing his staff clean up. They keep getting eaten like unsuspecting locals and a failure, some living after enlisting massive game hunter Hammett. The creature sheds its skin, thus disabling the tracking unit.