From the depths of our minds, nightmares came to life. Driven by their sole desire to eliminate their hosts, these monsters, in many forms, have become a scourge to be eradicated.

Faced with this growing threat, the Epeira caste has seen itself erected into the armed wing of the Church in order to stand up against the creatures of dreams. Arane Heos, the infamous "Boogeyman", is one such Epeira.

While facing the nightmares, she will have to deal with the growing turmoil within the Church and her caste, which now threatens the secrecy that surrounds her child.