In a Colorado ski resort town, two doctors die under mysterious circumstances, while their deaths are reported as little more than a "tragic accident." However, a local police detective named Scotty Corrigan, is suspicious of the deaths. During his investigation, he contacts Mark Adams, a doctor in a resort town in Utah for help in the case. Unbeknownst to the police officer, Adams begins to do an informal investigation of the deaths on his own and discovers something more frightening that anything he has ever encountered. Suddenly, he is propelled into a world where there is no distinction...