For Q. U. B. E., the Director's Cut thing has dialogue, and the original didn't. Story's irrelevant and you don't get a choice in the ending. Wait until your computer dies because trusting person B isn't an option or trust person A and not person B. It's like the Portal dialogue, except it isn't funny and has nothing to do with the game. So, basically, someone's talking to you and you can't respond, then you jump into a door whether you want to or not because the game isn't programmed to respond to a player who just doesn't.
Fun game though.