Twilight receives a letter from The Doctor himself about him and his assistant looking into investigating a manor that was torn down years ago and he wants she and her friends to tag along on this investigation. When she agrees to do this, they make their way to the manor. They find a note saying that Doctor Whooves and his assistant Derpy Hooves have already gone inside. When they head on in, they get split up supernatural occurrences, eventually discovering one way out, but it is something darker than they could ever imagine: Being manipulated to murder one another.