you enter a old abandoned apartment in Olympus Heights, a part of Rapture where a majority of the upper class citizens used to live before the civil war, you see that the apartment isn't in such a bad state, and seems to be in a still liveable state, when suddenly a female splicer comes out of one of the rooms, yelling angrily

Smith: "Who goes there?! Guards get them out of my sight!"

However no Guards respond, it seems like the splicer is alone in the apartment