Enter the C.F. Room.
The door is locked. You try the skeleton's key, but it doesn't work.
Look under and examine plaque
It's a copy of the Hippocratic Oath. It's affixed to the wall-- it won't budge.
Play chess with the dog. No, really.
You invite the dog to play a round. It slobbers a bit in response.
look under lamp
There's a broken bulb under the lampshade.
Look under carpet
Under one corner of the carpet is another note.
This one is written in a different handwriting than P.A. Les'. It's also quite succinct.
Study the chessboard. Oh, and don't move the chess pieces!
You check out the chessboard. There are only six pieces on the board; three white and three black. Shame - with a full set of pieces you'd be able to play a game or two.
Search the couch thoroughly.
You find some kind of floor plan-looking thing.
It appears to be one page out of a series.
Examine the liquid under C.F.'s door
It appears to be a very dark, dank water. You can hear running water coming from somewhere.
Look through the keyholes of the doors
In the P.A.L. room, you see a set of hooks with some kind of bra-looking thing hanging from one of them. You can also see part of another door, with water leaking from underneath it. The room appears to continue to the left a bit, out of sight.
In the C.F. room, the view is pretty similar, with the room extending to the right. The entire floor is soaked in a thin coat of water. On these set of hooks there is a labcoat.