Is This The Shortest But Scariest Horror Story Ever?

On reddit, a question was posed. "What is the best horror story you can come up with in two sentences?" There were many two sentence stories that were pretty creepy. To us, this one took the cake. Keep reading to see the story. 

From redditor justAnotherMuffledVO:

I begin tucking him into bed and he tells me, "Daddy check for monsters under my bed." I look underneath for his amusement and see him, another him, under the bed, staring back at me quivering and whispering, "Daddy there's somebody on my bed."

 

FREAKY!!!

So, can you do better? What is the best horror story you can come up with in two sentences?