Non Camera Facing Clipping Plane?

I’m working on a 3d floor. Most of the time I shoot these from directly above and I can just use camera clipping to see inside. On this one its going to be at a slight angle. Is there some way to clip geometry detached from the camera?

Slice modifier?

That would actually remove the geometry from the scene. I want it to render as if the rooms have ceilings…the camera just sees through them.