All Carolyn Potter wanted was a safe haven in which to raise her son, Jason, not to find a night stalker lurking in the forest surrounding their new mountain home. Following the unsolved murder of her husband and a violent attack on her son, Carolyn Potter learns she has inherited a cattle ranch located in a remote valley high in the Sierra Nevada Mountains. She eagerly leaps at the opportunity to escape urban violence, move out of her oppressive mother's home and get away from her hungry eyed, lip licking employer, Tom Kirby. Kirby, buried under gambling debts, is destroying Kirby Publications, a company built by his deceased father. Learning of Carolyn's inheritance compels him to win her favor in order to marry into her newfound wealth but Carolyn chooses Shangri-la, her dead husband's family ranch. Carolyn and Jason love their new home but soon learn of a local ritual being practiced on their land where a bull calf is brutally slaughtered with each cycle of the full moon....