On the eve of her 19th birthday, Nina finds out that she has been cursed since ancient Roman times by Emperor Justinian. She carries a plague that can wipe out the human race. The Book of Fire reveals that Nina can choose to live and infect millions, or avoid the fate by spending eternity in purgatory. She has three days to decide, and so Nina has no choice but to make her own destiny.

After a group of teenagers discover several pages of bizarre drawings scattered throughout their campsite they become the target of a masked man - a slender man that only moves when no one is looking.