民国时(🍅)期,兴乌镇(zhèn )中医九叔在钱(🏽)家(🐌)祭(jì )祖时,钱小姐被勒死(sǐ )(🔱)。九叔(shū )发现凶手留下钟馗(🐉)玉佩,怀疑(yí )与钱老(lǎo )爷有(yǒu )仇(🎾)。凶(xiōng )(🌫)手再次行凶(❣),九叔与警察(chá )队(duì )长梁连(lián )生暗中追查(🗄)。最终(zhōng )发现凶(xiōng )手是丁牧,他为祭奠(diàn )(🐖)自缢的弟弟丁(🥞)远(🗑)而杀人(✖)。丁(😻)牧伏法,九叔救出(chū )被(🐖)劫的钱(💞)巧云,小(xiǎo )镇恢复平静。