Beauty Salon: Special Service 4: Focusing on the relationship between men and women in a beauty salon, Dae-hye, the director of a korean erotic film beauty salon, becomes more difficult to sell in a depression. The building owner’s rent pressure also comes in, and employee Juhee suggests to Dae-hye to do a bikini service, saying that a bikini beauty salon has hit the jackpot in a foreign country. Surprisingly, bikini service is on the jackpot and guests are increasingly looking for a more powerful service.