A world like our own in every respect… save one: Beginning in the 1940’s, random acts of possession begin to occur. Ordinary men, women, and children are seized by entities that seem to spring from the depths of the collective unconscious—pop-culture avatars that some call demons.

When Del Pierce was five years old, he was possessed by the entity called the Hellion. Twenty-three years later it’s back, trapped inside his head and clamoring to get out. He needs an exorcism, by any means necessary. The answers may lie in a handful of golden-age comics, a series of demon-created paintings, and his own childhood memories.