A group of high school friends reunite years later for a weekend of partying and catching up on old times. Isolated deep in the snow covered forest, they stumble upon a mysterious corridor of light. Like a drug, the corridor's energy consumes them, driving them to the point of madness. One by one, they turn on each other, taking their evil to the next level. Mayhem leads to murder as they race to outlast each other, and the corridor's supernatural powers.