Carly Chase is still traumatised after being in a fatal traffic accident which kills a teenage student from Brighton University. Then she receives news that turns her entire world into a living nightmare.

The drivers of the other two vehicles involved have been found tortured and murdered. Now Detective Superintendant Roy Grace of the Sussex Police force issues a stark and urgent warning to Carly: She could be next.

The police advise Carly her only option is to go into hiding and change her identity. The terrified woman disagrees - she knows these people have ways of hunting you down anywhere. If the police are unable to stop them, she has to find a way to do it herself. But already the killer is one step ahead of her, watching, waiting, and ready ...