Eyes have not seen it. None have heard it. Mankind has not experienced it....Until now.
Something has awakened on the other side of existence. Darkness seeps into our world and upon the streets of our cities, as an unseen force gathers without detection.
Meanwhile, a sacred order established a thousand years past, prepares for a final assault. But it will take more than the thinning ranks of the order's elite warriors to hold back the power that is about to be unleashed.
In this secret realm of brutal warfare and spiritual struggle within a circle that exists just beneath the surface of mundane civilization, one man and one woman will become humanity's last defense against the most primordial embodiment of ultimate evil.