I FOUND MYSELF IN A STRANGE HOUSE AND I'M SCARED

I found myself in a strange house and I'm scared. I think I got into some kind of loop. The house is constantly changing, surely I saw something inexplicable and terrible. I have to get out of here. Every time I go through a cycle, one of the chains on the basement door disappears. I should probably get in there and get out of here. I'm very scared.