Mining engineer Shigeru investigates the disappearance and death of his fellow coworkers when prehistoric nymphs are discovered emerging from the mines. After an attack on the local village, Shigeru heads deeper into the mines only to make a more horrifying … Kenji Sahara, Yumi Shirakawa, Akihiko Hirata, Minosuke Yamada, Yoshifumi Tajima, Akio Kobori, Mitsuo Tsuda Added on HBO 2023-06-27, leaving 2024-10-01. Youtube Trailer