This is that very typical office outfit with slacks you very often see every day during the colder months. When I was last working in an office, the very suit was worn regularly. The slacks and jacket were pressed and the grey silk blouse is one I have worn for many years. The bra and heels are similarly part of my outfits even today.
The scene starts with a very slow soaking of the entire outfit using a hand held shower attachment and ends up in the tub after it fills up completely. You know that woman at work who always wears a sharp pantsuit? Well here she is doing what you have always fantasized about! Stepping straight into the shower and relaxing in the tub fully-clothed!