The Master Returns: Ghost Prisoner: Zhang Jiuying arrives in Sihai Town with his apprentices, Zhao Cai and Jin Bao, to attend a wedding at the Li family estate. However, strange events unfold that night: the male servants die under mysterious circumstances, and the maids vanish without a trace. As rumors of a haunting spread, Zhang Jiuying teams up with a local innkeeper and the police chief to investigate, leading them into a deeper and more dangerous mystery.