Geology professor Taiyo Yamamoto (Ryohei Otani) and his seminar students headed to Jukai, where they would sink to the bottom of the dam in the next three days as fieldwork. There was a rumor that the secret fund \”M fund\”, which was said to have been requisitioned by GHQ from Japan after the war, was hidden, and he was trying to confirm the truth. However, there is a suspicious abandoned village like Sugizawa, which was rumored to be on the net, and there are many more bodies! Furthermore, those who touch the body will have their arms immobile like a living zombie. With three days remaining in the time suspense, can Yamamoto and his friends survive and escape from the sea? ?