HuH??? I don't get It

At the start of the video Michael finds a business card and comes to the conclusion his girlfriend is cheating on him with someone named Alex (name on the card). As the video progresses we learn that the girlfriend is working for a secret exclusive billionaire-boys-club escort agency, her appearance changes as she visits each client and as well as her name, the business card Michael found at the start is one of hers (others include Diana and Eve). She returns 집 and an assistant drops all her cards in front of her revealing her secret has been found out and Michael has left and she returns to her work being high class prostitute.