So I don't know if I was watching a show on tv or reading a book, it was kinda inconsistent. But a kid was investigating really creepy things going on in his house, like people and things appearing and disappearing, strange sounds and sites, and other creepy things. One night he's another and there's suddenly another person in the house with him that looks exactly like him. It starts chasing him around, and every time it touches him, the time changes dramatically, like he just "lost" a bunch of time, like entire days will pass. The thing tells him that eventually, if it touches him 10 times, he'll loose all his time and be frozen in place forever, trapped out of time, unable to interact with anyone or do anything forever. At this point it begins chasing him around, occasionally getting a touch in on him, and I start skipping pages in the story because I'm too scared. Eventually he escapes the thing, because it was bound to the house and he got far enough away. But that was just a trick, the thing actually isn't bound to a place and catches up to him while he's resting, thinking he escaped and touches him one last time. And then the story ended, and the dream ended.

And now I'm afraid to go downstairs.