 Prof. Ogden is attacked by a member of the sinister Shaitan devil-worshiping cult, and when he awakes he has the mark of Shaitan burned into his hand. The legend is that when the mark disappears the person will die, and as the symbol begins to fade away, Ogden gets sicker and sicker. Dr. Reynolds must race against time to unlock the secrets of the Shaitan cult before Ogden dies.