一(yī )场百(🍅)年罕见的蝗灾(✒)侵袭了武周大地,武则天下令送赈灾银(yín )(🕰)往(🤢)灾区,却(🔧)在(🎗)途中(🆖)被劫(🐉),数万两白(bái )银(🗼)竟化蝶消失(shī )!狄仁杰命(mìng )其亲(❣)随(suí )赵员(yuán )镇(📼)奉(😎)命彻查(chá )(⚫)此案,自己微服(fú )潜入民间调(👁)查(chá )。在查(🔲)案的(🛹)过(🚉)程中他(tā )们遇到了需自(🥞)证清白的嫌疑人(rén )官(guān )小柒,又陷入了(🐖)赈灾银(💞)再次被劫(jié )的(de )困窘之(zhī )境(jìng )。灾民民怨四起,化蝶案扑朔(shuò )迷(mí )离(🥎),朝(cháo )堂权谋(móu )暗潮汹涌(yǒng ),狄仁杰是否能查清真相,天(⏰)下又是否能重回(🧤)太平?