2 groups of teens find a book connected to a mysterious killer that starts to kill them off 1 by 1. 2 groups of teens find a book connected to a mysterious killer that starts to kill them off 1 by 1. 2 groups of teens find a book connected to a mysterious killer that starts to kill them off 1 by 1. 2 groups of teens find a book connected to a mysterious killer that starts to kill them off 1 by 1.