In the 1990s, when there were fewer hotels and casinos in Macau than convenience stores, Shishi (Liao Ziyu) was a bone sister for the first time and was trembling with fear when she was given the number 19 technician. The experienced number 18 Lingling (Yu Xiangning) took care of the newcomer, and 18 and 19 were connected from then on. On the eve of Macau's return, the society was turbulent, the bone farm business declined, and the sisters sought their own way out. One of the good sisters stayed in Macau and the other married in Taiwan. Decades later, a missing person notice made Shishi (Gigi Leung) return to the old place and found that the people had changed completely. It also evoked her memories of Macau in the 1990s, her first experience in the bone farm, and her good sister Lingling. She also discovered Lingling's secrets that she had never told, which taught her to face herself calmly. The characters in small cities are always good-looking. Director Xu Xinxian recorded the local Macau, feeling the changes in the city while capturing the past.