Peter enjoys his solitary life in the Montana countryside. Higher mathematics, greater thought, sustain him more than companionship.
But after a solitary walk along his isolated property's borders results in a potentially deadly fall, he fights like hell to survive, knowing no one will come to rescue him.
So, when he starts seeing thingsâ€"a creature he knows can't existâ€"he grasps at his one chance for survival: believing in the impossible.