古币风波

**A chance discovery of an ancient coin brings construction worker Xiao Mingda (Hu Wei) an unexpected series of events. Coin expert Huang Yifang (Shu Shi) identifies it as a priceless Song Dynasty "mother coin." Overnight, Xiao Mingda gains fame, with his wife, Auntie Jin (Wang Su), hoping to strike it rich, his sister, Mingjuan (Wu Lijia), wanting to leverage Huang's connections for a job at the research institute, and his apprentice, Zhang Delin (Shen Xiaojian), also seeking a share. However, fortune turns fickle when another expert deems the coin a fake, leaving Xiao Mingda disgraced and Huang hospitalized. Police investigation later confirms the coin's authenticity, but it has mysteriously vanished.**