The Winchesters check in at Cross Creek Hotel to purge its ghostly guests. It is widely known that the hotel is haunted and every year thrill-seeking tourists check in to experience the supernatural, but as far as the Winchesters are concerned, there’s no such thing as a happy haunted hotel.
The hotel is managed by twins Oliver and Farrah, and while Oliver is happy enough to let them stay, Farrah is adamant they should leave. A presence that sleeps during the tourist season wakes in the deep, long dark of winter, and while Farrah’s been keeping it at bay for years, she doesn't know if she can ensure the brothers' safety.
The Winchesters refuse to leave and the twins reluctantly allow them to stay, with warnings that they shouldn't wander off by themselves or enter the maze, but the Winchesters have never been good at following other peoples' orders.
As the boys investigate the haunting and delve into the history of the hotel, they find out that ghosts are the least of their worries. When Sam gets lost in the maze and the unknown presence takes an interest in him, they realize too late that they're in over their heads.
In the days immediately following the fire, John has to reconcile the truth of what he saw. Doing so forces a discovery that sends John down a path where there's no return.