Strange Creature Caught on Webcam

Here’s a video of a guy chatting to his friend on a webcam totally oblivious to what’s going on behind him. You’ll notice a small creature peer through the doorway. It slowly creeps around for a couple seconds, and then it silently dissappears into the hallway. From what I can tell, it kind of looks like Gollum from The Lord of The Rings. I don’t know what it is, but I sure don’t want it in my house…