Ogura Kammonkaikyo Satsujin Jiken (KAPPA)

[Machine Translation] Three generations of a Kitakyushu family suffered suspicious deaths. Detective Michihara investigates a series of incidents that transcend time! Yukie Kadoshima, a single mother, fell to her death while climbing Mt. The forensic report revealed that she was killed by someone, and Denkichi Michihara of the Matsumoto Police Station began investigating the case as a murder. Interviewing climbers near the scene, a suspicious lone male climber surfaces. Furthermore, Yukie's ex-husband, Minoru Takekawa, is no longer at his residence in Tokyo and has quit his job. With suspicion in his heart, Michihara went to Kokura, Yukie's hometown. From the testimonies of Yukie's acquaintances, he learns that not only her father but also her grandfather had died a suspicious death near the Kanmon Straits. Is there a connection between the incidents of three generations in a row?

北九州の一家が三世代にわたって見舞われた不審死。時を超えて連なる事件に刑事・道原が迫る!北穂高岳を登山中、シングルマザーの門島由紀恵が落命した。鑑識の報告で何者かに殺されたことが判明し、松本署の道原伝吉は殺人事件として捜査を開始。現場付近にいた登山者への聞き込みで不審な単独行の男性が浮上する。さらに由紀恵の元夫・竹川実の姿は都内の住居になく、勤め先も辞めていた。疑念を胸に道原は二人の故郷・小倉へ。由紀恵の知人らの証言から、彼女の父親だけでなく、祖父までもが関門海峡近くで不審な死を遂げていたことを知る。三世代続けて遭った事件に関連はあるのか!?