Holiday apartment

You went to a friend for tea, but the thing you lost. It so happened that you are out of the living room and went into one of the doors ... and the door slammed shut. Now cry, do not cry - you still can not hear. All hope for your ingenuity. How to get the keys, and most importantly where? You have to walk around the room to find a way out of this room. Here is a set of utility items.