In a deadly Icelandic snowstorm, four friends break into an abandoned hunting lodge, hoping to wait out the storm until morning. But nothing prepares them for what's inside. They have to spend a terrifying night in the cabin: watching as intently and silently as they themselves are being watched. Soon it's clear that what they've discovered in the cabin is far from the only mystery lurking there. Four friends. One night. Not everyone will come out alive.