A friend of yours with a wealthy family is a member of a secretive, grand club that meets at the mansion of a reclusive “Duchess”, after confiding in you that it’s basically a very fancy sex and kink club, she manages to wrangle you an elusive invitation to join them for a couple of their tamer social gatherings, though still convinces you to fill in an application for their annual lock-in event, but at the next meeting you go to, your name is picked.