One morning, Marie Kincaid awakes in an infirmary with total memory loss and a new power: Glazier. The cold frozen mists of Glazier's instincts enable Marie to embark on a new life, free of pain but most importantly free of the past. Heightened senses, accelerated strength, speed, and learning abilities make her a perfect spy ... also a perfect companion for Henry Tenison, the only other known Glazier.

Henry, a loner and proud rogue, finds his world upended when his connection to Marie is forged. He endeavors to keep it strictly professional, but as faraway missions and romantic surroundings entice him into pursuing his deeper desires, he caves. Marie's love changes everything.

Determined to free them from the spy world and the hold Glazier has over their lives, Henry implements a plot to disappear. But when things become dangerous and memories of Marie's past surface, suggesting another man, will Henry's efforts be too late? If Marie remembers her past, will she still want their future?