『芒果一碼二(er)碼三碼四碼區』介紹:柯南在(zai)(zai)街頭目(mu)(mu)睹一名正打電話(hua)的警(jing)(jing)(jing)察(cha)在(zai)(zai)雨中被(bei)射(she)殺,忙將(jiang)兇手(shou)(shou)追蹤(zong),但兇手(shou)(shou)逃脫。死者閉(bi)眼一刻(ke)緊(jin)抓左(zuo)胸,似乎有所暗示。事后柯南從目(mu)(mu)暮(mu)警(jing)(jing)(jing)官口(kou)中了解到(dao)緊(jin)抓左(zuo)胸是暗示那里(li)有警(jing)(jing)(jing)察(cha)手(shou)(shou)冊(ce)。不久又有警(jing)(jing)(jing)察(cha)手(shou)(shou)拿(na)警(jing)(jing)(jing)察(cha)手(shou)(shou)冊(ce)被(bei)人(ren)射(she)殺于(yu)(yu)地下車庫(ku)。對(dui)于(yu)(yu)這兩(liang)起(qi)案件,目(mu)(mu)暮(mu)警(jing)(jing)(jing)官等人(ren)一反常態不愿(yuan)向毛(mao)利(li)(li)小(xiao)五郎及柯南透露太多信(xin)息。毛(mao)利(li)(li)不甘心進一步(bu)追問(wen),白鳥警(jing)(jing)(jing)官只答一句“Need not to know”。該話(hua)是警(jing)(jing)(jing)察(cha)之間(jian)所用(yong)的密語,意味這兩(liang)起(qi)殺人(ren)事件與(yu)警(jing)(jing)(jing)察(cha)內(nei)部人(ren)士(shi)有關。