When a trip to a remote cabin leaves eight friends stranded on a mountainside, sinister events make them suspect they're not alone... Gripped by fear and with tensions in the group running high, step into the quaking boots of each of the eight terrified characters as you search for clues to the deranged killer's identity. By making life or death decisions using the sophisticated "butterfly effect" system, everything you do will drastically alter the course of the story - and the fate of each character.