Yo so like, I was playing on easy (cuz I was trying to work my way up) and I found two of the keys, but couldn't find the other two. I looked literally everywhere- I opened every door and container I could find. I was literally going around in circles checking the same areas over and over again, and the keys were NOWHERE. I probably spent like 30 minutes to an hour just rechecking everywhere I had gone.
So my question is, is there somewhere I missed? Is there another container thingy that I can open that I didn't know about? Am I blind? Is there a game mechanic where she can move around keys and I just got super unlucky with it? Was it some kind of bug, and they keys spawned in each other's rooms?
I don't know, but it was frustrating so I figured I should ask and let you know.