When a self-conscious fitness instructor named Jo becomes the victim of cyber-stalking that turns physical, she must use her fitness skill and growing fight instinct to stay alive.

After committing a series of multiple murders, a neurologist visits an incarcerated killer, living in exile. She studies him and his brain and discovers the horror that lurks behind his violent impulses.

When a self-conscious fitness instructor named Jo becomes the victim of cyber-stalking that turns physical, she must use her fitness skill and growing fight instinct to stay alive.

After committing a series of multiple murders, a neurologist visits an incarcerated killer, living in exile. She studies him and his brain and discovers the horror that lurks behind his violent impulses.