Barry Williamson

Two New Orleans paramedics' lives are ripped apart after encountering a series of horrific deaths linked to a designer drug with bizarre, otherworldly effects.

A divorced mother honks impatiently at a deranged middle-aged stranger at a red light while running late on her way to work. His road rage escalates to horrifyingly psychotic proportions as he becomes single-mindedly determined to teach her a deadly lesson for provoking him.