The door at the lobby will lead to Olof. Come back when you have collected all the stuff for the plan to thwart Olof.
This is the low-spoiler guide for "Entering the room at the lobby" puzzle in Paradigm. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.