"Groan" the sex trade is a part of social youth film, interleaving, money and human reality and dreams of the test in this movie, to show the most incisive. Everything happens for a reason, the film tells of the content is not weakness lends wings to rumours., contemporary society, "sex trade", "mistress", "Godfather", "local" and so on sensitive words It is often seen., in front of the money and desire, we not be overthrown. The film reveals it is in today's society, some hot events, show a group known as the "periphery female" luxury living inside, with a unique perspective to show the audience the special ring is cruel but true side.