一场百年罕见的(🆓)蝗灾(✒)侵袭了武周(🏽)大(dà )地(dì ),武(wǔ )则天下令送赈灾(zāi )银往灾(zāi )区(🍥),却在途中(zhōng )被劫,数(shù )万两白银竟化(huà )蝶消失!狄仁杰命(mìng )(🎲)其(qí )亲随赵员镇(zhèn )奉命彻查此案,自己微服潜入民间(jiān )调查。在查案的过程中他(tā )(🐖)们遇(yù )到了(le )(🎿)需(xū )自(🥞)证(🗑)清白的嫌疑人(🚸)官(🖍)小柒(🐶),又(yòu )陷入了赈灾银(yín )再次(cì )被劫的困(kùn )窘(jiǒng )之境。灾(🚨)民(mín )民(mín )怨(😞)四起,化蝶(dié )案(àn )扑(🎛)朔迷(㊗)离(🥎),朝(💻)堂权谋暗潮汹涌,狄仁杰是(🙄)否能查(🙀)清(🙉)真相,天下又是(⛏)否能重(👃)回太平?