As a girl, Joanna Chase thrived on Rustling Willows Ranch in Montana until tragedy upended her life. Now thirty-four, she begins to receive pleas—by phone, through her TV, in her dreams: I am in a dark place, Jojo. Please come and help me. Heeding the disturbing appeals, Joanna is compelled to return to Montana. And she isn’t the only one - people from all over have converged at the remote ranch, seeking answers to the same omniscient danger. All the while, on the outskirts of Rustling Willows, a madman lurks with a vision to save the future. Mass murder is the only way to see his frightening manifesto come to pass. Through a bizarre twist of seemingly coincidental circumstances, a band of strangers now find themselves facing an encroaching horror. Unless they can defeat this threat, it will spell the end for humanity.