Cut to the Psychiatric Unit of Loughmann Medical Center. Some guy (V. Elsing, presumably) is chained to a table in an observation room. Helpful Guard tells Derek and Chloe that Elsing was first picked up for disturbing the peace. Derek asks what happened to his face (which we haven't seen yet) and Helpful Guard says that Elsing "went crazy last night" and attacked one of his guards, and it "took six men to bring him down." I've never spent time in a psychiatric hospital, but I would guess that after attacking guards, said patient would be put on heavy medication. Derek wants to talk to Elsing, but Helpful Guard isn't so helpful in that respect, so Derek slips him a twenty. Helpful Guard says they can have five minutes and gives Derek the money back.
Derek and Elsing sit in a room, and Elsing says "they're not human, the ones that you're looking for." Derek wants to know who he's looking for. Elsing starts babbling about when you hear something in your house at night and you start turning the place upside down to make sure your home is still safe. Derek says that has happened to him, and Elsing says that maybe he really did hear something, like "something else, something fearsome." There's that old title again! Elsing says "they feed on fear," and the only way to stay safe is not to feel terror. Derek asks what he's seen, and Elsing says, "More than enough." He reaches up to scratch his nose or something, and reveals a tattoo on his wrist that looks like the ones on the Croatoan tree or in Adam's notes, and then yells, "You only see what your mind can handle." Derek says he doesn't understand, and Elsing says Adam didn't either, at first, but it doesn't matter because "they'll be coming soon...real soon." And I know that I always take paranoid ramblings of unmedicated psychiatric patients seriously.
Derek and Chloe exit the hospital, and Derek tells her what Elsing said, and about his tattoos. Chloe says it "gets even crazier" because she "checked the date on Elsing's admittance" and it was "the same night that Adam died." I guess the "even crazier" part is that hospital staff would give out that information. Derek spots Braids Woman walking nearby. In case you didn't get it, they show a clip of the QuickTime video. Derek knocks Chloe aside and follows Braids Lady into a building. Chloe follows and Derek stops inside the doors and tells her that it was "the woman from the ATM footage." Chloe wonders where she went, and Derek doesn't know. The camera pans out from the two of them standing there, and reveals that there are like eight sets of doors the woman could have gone through. Wouldn't that have been more effective if it had been a long hallway with no doors? Yes, it would have.