《古畑任三郎SP5黑岩博士的恐怖》这部悬疑片讲述了一系列看似意外死亡的案件，这些死者之间没有明显的联系，但都在肛门处隐藏着预示凶相的神签。面对这个扑朔迷离的案情，负责此案的刑警西园寺守被命令请古畑任三郎协助调查。

古畑任三郎与今泉慎太郎、向岛音吉这一经典组合再次聚首，开始揭开案件的真相。在其他人还在猜测案件的共同点时，古畑敏锐地将目光锁定在负责验尸的黑岩健吾博士身上。黑岩博士沉稳阴郁，经验丰富，但他身上隐藏着令人生疑的目的和秘密。

随着调查的深入，古畑任三郎逐渐揭示了黑岩博士的真面目。他发现黑岩博士与这些意外死亡案件有着千丝万缕的联系，以及背后的恐怖阴谋。黑岩博士的行为与他的职业形成了鲜明的对比，让人们产生了疑问和恐惧。

在这场心理博弈中，古畑任三郎展现出他出色的推理能力和冷静的思维。他与西园寺和今泉一起解开谜团，揭示黑岩博士的真正意图。然而，他们也面临着巨大的风险和威胁，必须抓住时机阻止黑岩博士的邪恶计划。

"Furuhata Rensaburo SP5 The Horror of Dr. Kuroiwa" is a suspenseful film about a series of seemingly accidental deaths. There is no obvious connection between the dead, but they all have a lotus fortune teller hidden in the anus, which portends evil. Faced with this complicated and confusing case, the criminal police officer in charge of the case, Xiyuan Temple Mamoru, was ordered to ask Ren Sanlang Guhata to assist in the investigation.

The classic combination of Furuhata Renzaburo, Imaizumi Shintaro and Mukaishima Otokichi reunited, Start uncovering the truth of the case. While others were still speculating about the common points of the cases, Guhata keenly locked his eyes on Dr. Kengo Kuroiwa, who was in charge of the autopsy. Dr. Heiyan is calm, gloomy and experienced, but he hides suspicious purposes and secrets.

As the investigation deepened, Furuhata Rensaburo gradually revealed the true face of Dr. Heiyan. He discovered that Dr. Black Rock was inextricably linked to these accidental death cases, as well as the terrorist conspiracy behind it. Dr. Black Rock's behavior stands in stark contrast to his profession, raising questions and fears.

In this psychological game, Ren Saburo Furuhata showed his excellent reasoning ability and calm thinking. Together with Saizonoji and Imaizumi, he solves the mystery and reveals Dr. Kuroiwa's true intentions. However, they are also facing huge risks and threats, and must seize the opportunity to stop Dr. Black Rock's evil plan.