You begin looking into the corner of a wooden area. You're on a stairway landing about two steps down from the top of the stairs. Turn down the stairs and descend to the theater area in front of you. You're not gonna see that it's a theater area immediately, but trust me, just follow that wooden railing on your left, all the way around and you'll see that this is indeed a theater area. Move towards the front of the TV, and then across it, into the second door on the right. Once you're in that door you should realize you're in a weird sort of bathroom. Move to the center of that bathroom and then into the shower. Once you are inside the shower, you are done.