The Kings have been in the creepy old place—their new home—for only a few days, but they’ve experienced enough terror to last a lifetime. And the mystery is growing even more baffling. Shadowy and shifting, the big house conceals doors into other worlds that blur the line between memories and dreams—and the slightest misstep can change history forever.

At least, that’s if they believe the trembling old man who shows up claiming to know them. “There’s a reason you’re in the house,” he says. “As gatekeepers we must make sure only the events that are supposed to happen get through to the future.”

The problem is that horrors beyond description wait on the other side of the gates. As if that wasn’t enough to terrify the family, they are also menaced by sinister forces on this side—like the dark, ancient stranger who wants them out now.