Bug maybe?
One of the Peachman brothers came to the window, and all their info checked out just fine, but I called their number anyway, just to be sure, and they answered and said they were both inside...
But since everything checked out, I decided to let the supposed doppleganger inside anyway, so the endgame breakdown would tell me what detail I missed...
But then I survived with an S rank anyway?
Bug? Or are the residents supposed to make mistakes sometimes? It would make sense if they do, as calling the apartments does seem a bit too easy