You begin looking at a shiny, shiny bathtub with steel sides. Turn to your left and move along the left side of the long table with a bunch of bathroom hardware laid out on it. Go ahead to the opposite head of that table to the one you started near, and then you should see a blue tub with two tubs on either side of it, and three chairs raised above it like some kind of bathroom kingdom's throne. Go ahead towards the tub to the right, and continue past the pedestal towards the other two pedestals up two steps. To the right of those two pedestals you should see a... Actual staircase. Go ahead to the foot of that staircase, and then up the stairs, to the right and up the second staircase in the stairwell, and once you're at the top of the stairs, all of the stairs, move into the doorway on the left. Once you're in that doorway, you're done.