Was it where Pauline was standing before it cut to Emma last night?
Because we didn't actually see her go in the room. Was it by the bottom of the stairs or was it the task room?

Their is a wall beside the Staircase, and at the right end of the wall is a door. It's not visible as it's made to look like part of the wall.
It was basically near the bottom of the stairs, when we saw Pauline putting in the key, only a bit further to the right.

it's where they normally keep Henry the vac

Thanks