1994年,榆江制(✒)药厂三名(míng )职工于台风夜(yè )残忍被害(hài ),嫌疑直指制药(yào )厂领导(dǎo )一—许成梁、(🍖)段(🔬)志(zhì )(🏴)刚和杜(dù )斌(bīn ),但(🎾)因证(🌫)据(jù )不(⏬)足,案件(jiàn )搁浅(♑),此(cǐ )案也成为老刑警(jǐng )石光(guāng )明的心结。十五年后,死(🥄)者的(🚉)后代苏然携丈夫(fū )赵伦以记者(zhě )身份重返(fǎn )榆江,利用制(🤯)药厂(🐖)假(jiǎ )药危机(jī )接近许(xǔ )(📎)成梁三人,伺机复仇(⏯)。苏然(rán )先以杜斌制售假(㊗)药之(🥔)事大做(🙂)文(📙)章,但(dàn )杜(dù )(🏂)斌突(🤠)遭灭口,后(hòu )用(🙀)段志刚与许(⏰)成梁夫(fū )人之私(👃)情(🧤)挑(🔔)起内斗,段志(zhì )刚又离(lí )奇(🤳)殒(yǔn )命..接(jiē )二连三(🤖)的命(mìng )案让(👣)石光(guāng )明带队介入(💔),事态迅速升级,愈发紧迫。最终在苏然的(de )布局下(xià ),潜藏的(💹)恶人们(men )皆惨烈(🏒)离场,无(🐡)一善终,但苏然也难(nán )(🔤)逃命运(📸)与法律(lǜ )的制裁,当(dāng )她如愿完成使命(mìng )后(🔙)