A dark secret.

It's your first time visiting your friends house, when you arrive, your friend tells you the rules of the house, one of them is not to enter the basement. The night goes by without a hitch until you ask your friend where the bathroom is, and they have to think about it for awhile, then they come up with an answer, and as you walk past the basement door you hear something so you walk closer to the door and you hear your friend screaming for help.