Carly Chase is traumatized ten days after being in a serious traffic accident. Then she receives news that turns her entire world into a living nightmare. The drivers of the other two vehicles involved have been hunted down by a sadistic killer. Now Detective Superintendent Roy Grace of the Sussex police force issues a stark and urgent warning to Carly: she could be next. The police advise her that her only option is to go into tiding and change her identity. The terrified woman disagrees - she knows these people have ways of tracking you down anywhere. If the police are unable to stop them, he has to find a way to do it herself. But already the killer s one step ahead of her, watching, waiting, and ready...