When a tour guide breaks into America's Most Haunted House, a bit of amateur ghost hunting with friends turns into more horror than they could have ever imagined.

When his child is possessed by an unrelenting evil, a father hires three expert exorcists to purge the demon and save his family. But this demon is merely the gatekeeper to a true hellion that ...

Dracula, Werewolf, and the Invisible Man must work together to stop Dr. Frankenstein from creating an unstoppable monster.