DI Kayli Bright is called to the scene of a terrible accident that appears to be a case of careless driving. However, her gut reaction tells her there's much more at stake. Within hours, her suspicions are confirmed when she is called to investigate a second incident on the same stretch of road. This time there is no doubt in Kayli's mind that she's dealing with a murder enquiry. Are the two incidents connected? Is Kayli looking for a driver with a severe case of road rage? Or is there a twisted serial killer on her patch? As Kayli sifts through the web of lies to capture the killer, her personal life seems to be falling apart. Her fiance, Mark, returns home from his new job oversees a changed man. What is he hiding? Could Mark's dark secret be destructive enough to put an end to their relationship?