"Sixteen year old Kat Whittaker led a normal, boring life up until the day she had a near death experience and came back being able to communicate with ghosts. She gets outcast from her social circle and befriends the new kid, Kevin, who surprisingly now shares the same ability as Kat. They discover that their local high school used to be an old lunatic asylum that was home to a cult of devil-worshippers, and the arrival of the suddenly gifted teenagers stirs up these things that should have remained buried forever. The dark spirits and the demons are awake, and now nobody and nowhere is safe...