After reading the note on Kozlov's door, you'll need to get inside dorm 110 to continue this quest. The door is locked and requires a special key to access. The Dorm Room 110 Key is a rare drop just ...
"Oooooo, buuuuuuy meeeeeee, ooooooo" —the ghost of that pastel Dutch oven you saw two days ago and can't stop thinking about.