Department 18: Government agents specializing in the paranormal and associated psychic phenomena, including hauntings, poltergeist activity, demonic possession and other unexplained occurrences.  All files highly classified.They have existed since before man walked the earth.  They are the Breathers, a species of vampirelike creatures that feed on human souls.  They have evolved over the centuries and now are split into two warring factions.  Both are a threat to mankind.  As the battle lines are drawn, Robert Carter and Department 18 are caught in the middle.  They are all that stand between the two sides and their unsuspecting prey.  Us.