It used to be different

A horror short set at one place in two times. Decades ago, two women in vintage swimwear arrive at a strangely quiet indoor pool to deal with a peculiar, recurring problem, with the dry, weary efficiency of people who've been through this before. Years later, a group of teenagers breaks into the same building, now abandoned and overgrown, drawn by rumors of "something bad" that happened there. The cocky ringleader pushes the dare further than the others.