Mystery Evidence

In Liujiazhai on New Year's Eve, the widow Zhang Caixia (played by Yuan Jiamin) and her mother-in-law Li Yuemei mysteriously disappeared. After the report was reported, the police investigated and listed the village quarry director Liu Dongmin (played by Chen Baoyuan), the unemployed Liu Fang (played by Baduo), and the quarry blaster Liu Shanpao (played by Sang Ping) as suspects, but all three denied it. The key at this time is to find Zhang Caixia and Li Yuemei. Where are the bodies hidden? A series of confusing evidence that seems both true and false is placed in front of everyone. Which one is the real evidence?