For as long as she can remember, Kristen Craemer has been running from something. In high school and college, she ran competitively, until her Olympic dreams were shattered. Now, she runs to escape--from her past, from intimacy, from reality, and from the cold, black mist that haunts her nights.

Desperate to stop running, she turns to therapy, alcohol, and pills--anything to dull the fear--but her struggle intensifies with every passing night. Gradually, the nightmares encroach on her days, until everything she holds dear slips further away.

Kristen's fears increase when...