Synopsis

In Nagano Prefecture, Conan, along with his companions, encounters Inspector Yamato and his colleagues from the local police force. Their visit coincides with an exploration of the Kansuke Shrine ruins and Yamamoto Kansuke’s grave. Later, while near the Chikumagawa River, they discover the severed head of Inspector Shigeru Takeda, bearing a peculiar mark resembling a woodpecker's footprint. Rumors of a clandestine organization called the Woodpecker Society within the police department begin to c