The Kingdom Night Club "mamasan" Sa Ching-ha (Monica Chan) and her girls Shek Wai-king (Elaine Yiu), Man Nga-lun (Jacky Cai), Kong Kit-yee (Yvette Chan) and Yue Hau-hau (Connie Man) get along well. Each of the quintet has her own reasons for playing the role of midnight lady. But they all have certain issues in their romantic relationships. After sacrificing everything for her boyfriend Dave (Dominic Ho), Nga-lun realizes she has been scammed. Wiseguy Cheuk Chi-fei (Mat Yeung) wants to help her get out of this mess. However, their relationship becomes complicated due to Wai-king's presence. Kit-yee has to make a choice between playboy Marco Hui (Kelvin Kwan) and her old schoolmate Wong Tsun-kui (Matthew Ko). Hau-hau is messed up because of some freeloader. Ching-ha keeps waiting for her husband Lee Ching-lung (Michael Tong) to be released from prison. When nightclub people engage in power struggles, they do not hesitate to use dirty tricks to overpower their opponents. Everywhere is triad territory, and danger lurks around every corner in this place of indulgence and decadence.
