On a cold and stormy night, Diana, her husband, Teddy, and their three children are driving to Pennsylvania to visit Diana’s sister. In the blinding rain, they can’t find their turnoff and stop at a sinister-looking castle to take shelter from the storm. They are greeted by a strange man, who welcomes them into his home. The family finds the atmosphere of the castle to be unsettling, but not wanting to be rude, they take the room offered to them. Before long, they discover that the inhabitants are monsters-vampires, werewolves, witches, and goblins, just to name a few-and to make matters worse, they are conjuring up a terrible beast to tip the balance of good and evil in their favor. The family must find a way to escape, before they become permanent residents in the castle of death.