Sanity is relative and the world has room for more than one truth. When Diego rescues a naked man from the rail of the Brooklyn Bridge, he just wants to get the poor man out of traffic and over to social services. He gets more than he bargained for when Finn turns out to be an ailing pooka, poisoned by the pollution of the city. To help him recover, Diego takes him north to New Brunswick where Finn inadvertently wakes an ancient, evil spirit, the wendigo. While Diego and Finn struggle to find a way to destroy the wendigo before it can possess Diego or kill nearby innocents, Diego wrestles with his growing passion for Finn. Can they succeed in destroying the monster and in navigating a relationship between a modern man and a centuries-old fairy?