Unbeknowst

You grasped the door's odd doorknob, before pulling the door open. What stands before you is a very small space, probably 2 feet by 2 feet in shape. Suddenly, without warning, something dropped from the top of the room and dangled in front of you. You jolt back, startled by what happened. What you see is a strange body, covered in blood, with an arm and a leg missing, as well as several chunks of flesh torn off. The stomach was pretty much missing, with what appeared to be an intestine dangling out, and several tendons and bones were exposed. The most frightening feature was its face. The corpse's face was missing both eyes, a part of its head was missing, and the jaw was dislocated, being replaced with the strange, pimple-like thing covering the corpse's mouth. As you examine this, you can hear a small part of the wall next to you open up, which would make you jump, not as much as what the body did though.