Two scenes from the same episode. One woman is chloroform in her room and another one gets sleeping dust blown at her. Source: https://www.youtube.com/watch?v=ufN-wXCaYPg&ab_channel=TTV%E5%8F%B0%E8%A6%96%E5%AE%98%E6%96%B9%E9%A0%BB%E9%81%93TTVOfficialChannel (At the 20:33 mark)