I am at laboratory at the moment.
i was at a point where a zombie killed a woman and vanished.
instead of running after him or checking the area to the right, I went through the door which was on top of the screen. I entered a new area and wasnt able to go back. in that area I found a piece of paper with a code, just the first two numbers, 1 and 9. there are also metal boxes at one point which i cant move and a door which I cant open cause i dont have the full code.
I think I should have checked the other area completely first before going through that door...can anybody help me giving me the code or some other advice to continue, please?