The stairs bottom out into a set of doors, a speakeasy with bottles lining the walls, lightbulbs bare, seating wooden and 1940sish.

"TA DAAA. ... WE'RE GONNA REMODEL SOME OF IT, THIS IS HOW IT CAME!"

Bill slides in behind the bar - the space back there is clearly meant to only fit Bill, considering how much of the floor has been appropriated as storage.