一场百年罕见的蝗灾侵袭了武周大地,武则(🕟)天(tiān )下(xià )(🛍)令送赈灾银(yín )(🍥)往灾区,却(🆖)在途中(zhōng )(🛤)被劫,数万两白银(yín )(💤)竟(jìng )化(huà )蝶消失!狄(dí )仁杰命(🌗)其亲随赵(😎)员(yuán )镇奉(⚫)命彻(🕔)查(🔸)此案(àn ),自己(jǐ )(🛍)微服潜入民间调查。在(🛹)查案的过(🐖)程中他们(🎿)遇到(dào )了需自证清白的嫌(xián )疑人官(guān )小柒,又陷入了赈(⏺)灾银再次被劫的(de )(🥁)困窘之境(jìng )。灾民民怨四起,化蝶案(àn )扑(🥎)朔迷(mí )离(🗞),朝堂权谋暗潮汹(🤠)涌,狄仁杰(jié )是否能(néng )(💪)查(chá )清真相(🈴),天下又是否能(néng )(🔔)重回(huí )太平(píng )?