Before Sam and Dean, there was John and Mary. Told from the perspective of narrator Dean Winchester, this is the epic, untold love story of how John met Mary, and how they put it all on the line to not only save their love, but the entire world.

A young Japanese woman who holds the key to stopping the evil spirit of Kayako, travels to the haunted Chicago apartment from the sequel, to stop the curse of Kayako once and for all.