On the other side of the world, Mike and Mariposa Guerrero are in the fight of their lives against an enemy they cannot defeat. Their seven-year-old son, Jaime, suffers from Tuberous Sclerosis and will not live to see his eighth year. It is all they can do to cling to each other as their son slips further and further away each day. But his lapses from this daylight world bring terror like they've never known, for Jaime is being stalked inside the darkness that waits within his dimming mind.

A breakthrough neurological device, MIMIC, allows Mike and Mariposa to communicate with their comatose child, the promise of bittersweet joy until they receive the chilling message "...in here with me. Daddy I am scared…"

A catastrophic injury sends Chase plummeting into a coma as well, but not before setting off the tiny, buried secret embedded within his brain. He locates Jaime within the twisted, horrifying comascape. And now a monster hunts them both. Mike and Mariposa can only watch helplessly as MIMIC depicts the predator's attacks, and the nightmare unfolding before them.

Chase knows he is Jaime's only hope. But can he keep his rapidly-failing human body alive long enough to save a small boy's soul?