Marty South has a nice apartment and a steady well paid job. He had never had any ambition. He had always avoided any kind of responsibility. But now he thinks someone is trying to kill him and neither his girlfriend nor the police believe him. Then South finds a dead body in his apartment and an assassin with a shotgun waiting for him outside. He escapes with the help of a woman calling herself Angel who says she has been sent to take him somewhere safe. Angel takes South to meet Doctor Harrington who has been paid to keep South safe by a mystery benefactor. But the police and the assassin are now closing in and he doesn't know whether he can trust Doctor Harrington. When South does discover what is really happening he realizes that he can trust no one and the only thing he can do if he is to survive is to run and fight. All he really wanted was a quiet life. But that is just what he may never have again.
