Zach always had a vested interest in the occult and supernatural. Blue hasn't always been a ghost, but she's been one for as long as she can remember. When a chance encounter during a trip to his parent's hometown ends with one freeing the other from an old dusty cabin, both are thrown into a new world of ghosts and exorcists.
Upon being told how much they resemble a civilian possessed by a ghost, they realize their only option to live a free life is to become exorcists themselves.
Now the pair have to juggle fighting ghosts, understanding their strange power to synchronize and combine, and trying to figure out Blue's past, all in one summer. Can the two of them learn the ropes of their new summer job before they end up getting hunted down themselves, or worse, face something far beyond what either could imagine?