Seok is the manager of a five-member girl singer group named Thriller. He watches out for the group as they play gigs in bar after bar. Seok is the son of a retired policeman and he can't stand to see injustice. However, as all five members of the band have strong personalities and different goals, it is hard for them to come together. One of the members tries to earn money but gets violated instead. She attempts to kill herself. Seok searches out the men who do this kind of thing and break up their gang. Also, Seok gets caught in an espionage conspiracy and the group is at the point of breaking up. Working frantically, Seok overcomes the crisis and holds the band together.