The film begins strongly, with an atmospheric opening sequence, predating John Carpenter's The Fog by two decades, of shuffling ghost-like zombies, blood streaming from their faces, rising from the waves to drag the workers of a deserted shipyard,swirling with dry ice, to their doom. The ghost's main target however is the village kingpin, and employer of the local diving girls, Satomura (played by Juzaburo Akechi). When his wife and youngest daughter are abducted, it is up to his remaining daughter Nami (Banri) and her ama companions to get to the bottom of the mystery, which again revolves around sunken treasure and a gang of swarthy crooks.