南町(🕕)奉(🍅)行所的小捕快主(🐽)水(🥇)介(jiè )奉(fèng )命调查一宗棘手案件,凶案(àn )接(jiē )二连三地发生,受害者身份各异,唯(wéi )一的(🥩)相(💤)似之(🎾)处是均被(bèi )一(🎲)刀刺(cì )中心脏(zāng )致命。此(cǐ )时(⚫),辖区里又(yòu )发生了一桩(zhuāng )命(🕯)案,药行老板(🥄)備前屋被一名身穿龙胆花(huā )和服的女(✖)人从背后(🖍)刺(🚑)死,根据中刀部(bù )位推断,凶(xiōng )器仍(🧚)然是一(yī )把细长(🚨)的利刃。南(🔢)町(❔)同(tóng )心(🦗)森川軍兵衛随即赶(🗞)往(wǎng )药(yào )行调查(chá ),在(zài )药行(háng )女主人阿涼的卧室里(🎾)搜出一件龙胆(🤷)花和服(fú ),并(bìng )据此将(jiāng )一脸错愕的(🤳)阿涼(liáng )(🥕)收监。阿(ā )(🚴)涼的妹妹阿園闻(🗳)讯后赶来与森川(🏉)理(lǐ )论,被拒(jù )之门外。无奈(nài )之下(xià ),阿(⛏)園拜托好(hǎo )友小霞出(chū )手(🚶)搭救。为了帮助(zhù )阿涼洗脱(tuō )嫌疑(🤔),小霞化名阿(📛)竜重入女牢,且(👵)看古(💸)灵精(jīng )怪(🍽)的小公(gōng )主如(rú )何(hé )(🔎)拨(🌂)开