刑警周(zhōu )行即(👷)将(🔨)和女朋(✒)友(🐽)陈凯欣求婚的前夕,在警局接获了一起凶杀案的通报。周行赶到山区当场(chǎng )逮捕杀人(😧)犯(fàn )李(lǐ )子建,并(bìng )发(fā )现死者正是(📼)陈凯(kǎi )欣。周(🐿)行(háng )强忍震惊(jīng )与悲痛,与警(jǐng )校的学弟王(🥄)御泽联(lián )手(shǒu )追(🐖)凶,却发现陈凯欣竟是(✖)自(🙁)愿让李子建杀(shā )了她。陈凯(🤷)欣(xīn )究(💞)竟(jìng )(⏺)是(🚢)自杀还(hái )是他杀?就(📯)在案件陷入焦灼(zhuó )时,来(lái )认(rèn )尸的家(🥎)属却告知(🙂)死者不(bú )是陈凯欣(🤠),而(ér )(🌞)是(shì )一位名(míng )叫林静(jìng )的女子,但没人(rén )知(zhī )(👃)道(🧤)林(lín )(🔔)静(🚻)为何要冒(mào )充陈凯欣(xīn )。渴望(🥕)得知真(zhēn )相的(🧣)周行决定(🌮)挺身而出,揭开林静留(liú )下的重(🛎)重谜(🚗)团