Jesse Monroe has been invited to teach Tarot Pneuma at the three hundredth anniversary of the Mystical Paranormal Convention, the most popular convention in the known universe. Before she can teach her class, she must attend a meeting that reviews a breakthrough software called Ouija. When communications break down and the software is demonstrated, it unleashes supernatural dangers throughout the entire hosting hotel. Jesse and her new friends must find a way to survive long enough to get out or they will suffer a fate worse than death, being in the clutches of the Mistress of the Flames.