Hiruko the Goblin

"Hiruko the Goblin" is a 1991 Japanese horror-comedy film directed by Shinya Tsukamoto, based on a manga by Daijiro Morohoshi. Young and energetic archaeologist Reijiro Hieda (Kenji Sawada) investigates mysterious incidents at a school where students have been brutally murdered, only to discover that a yōkai named Hiruko is behind the gruesome deaths. As Hieda delves deeper into the mystery, he enlists the help of Masao, Yabe's son, and together they uncover the dark secrets surrounding the schoolhouse and the cursed yōkai.