A struggling writer, David, discovers an ancient book in a forgotten library, containing a series of fantastical stories that seem to come alive in his dreams. As he becomes increasingly engrossed in the book, he realizes the stories are not simply fiction but a portal to a realm where the tales are real. The book, he learns, is a conduit for a malevolent entity that feeds on the power of imagination, twisting the stories into nightmarish nightmares. David must confront the entity and reclaim his own creative power before it consumes his mind and the world he has created.