When 22-year-old Alison Mannering returns to her home in northeastern Pennsylvania after college, she finds a troubling situation. Her father, Guy Mannering, a longtime coal miner, has died recently under suspicious circumstances, and her mother refuses to provide any details of his passing. Alison feels she has no option but to investigate the matter herself, enlisting her high school sweetheart, Randy Kroeber, as well as Randy's twin sister,...