I assumed it was for some sort of medical care, The picture with the fridges has what looks like a monitor on an arm to the right. It reminded me of something you'd see attached to an EKG or heart monitor something. I bet the fridges had medicine in them at one point.

People build out nice medical rooms in their homes if they/their family needs consistent medical care and they have money, that's probably what happened.

That or it's weird sex stuff.