Charlie Fox makes a living teaching self-defence to women after being kicked out of Special Forces training. When Susie Hollins is found dead hours after she foolishly takes on Charlie, the police admit to Charlie that Hollins is the latest victim of a homicidal rapist stalking the local area. Charlie has always taught her students that it's better to run than to stand and fight. But when the killer starts taking a very personal interest, it's clear he isn't going to give her that option.