As a girl, Joanna Chase thrived on Rustling Willows Ranch in Montana until tragedy upended her life. Now 34 and living in Santa Fe, she begins to receive pleas: I am in a dark place, Jojo. Please come and help me. Heeding the disturbing appeals, Joanna is compelled to return to Montana, and to a strange childhood companion she had long forgotten. People from all walks of life have converged at the remote Montana ranch. They are haunted, on the run, obsessed and seeking answers to the same omniscient danger Joanna came to confront. 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.