When a group of paranormal hunters investigates the infamous Blackwood Mansion, they unleash a horror beyond their wildest nightmares. As they delve deeper into the mansion's dark history, they begin to realize that they are not alone. A malevolent entity is lurking in the shadows, waiting to strike. One by one, the group members fall victim to the entity's power, until only one is left. But as the survivor tries to make sense of the horrors he has witnessed, he realizes that he is not alone. The entity has taken up residence inside him, guiding him on a journey of terror and discovery. Will he be able to uncover the secrets of the entity, or will he succumb to its power?