This low-budget horror movie very much benefits from the typically excellent craftsmanship expended even on such low-end efforts by major studios in Japan at the time. I can't concur with others that it reminded me at all of "The Fog," apart from liekwise involving ghostly vengeance for death at sea. The script is a bit confused, particularly once we get towards the end, when in addition to the supernatural element it turns out there's a sort of mad-scientist thing going on--making for a narrative agenda rather sillier and more overloaded than this movie can pull off.
Still, that doesn't matter so much, because the atmospherics are very effective in their widescreen B&W handsomeness, despite the fairly cheap FX. (Particularly the kind of tank miniatures more familiar from Godzilla-type films, with "stormy seas" clearly not much more than bathtub splashing in slo-mo.) The performances are decent enough, and while the story isn't terribly scary, there's a nice mood of creeping dread--you can almost feel the ocean air permeating inland, bringing ghosts and violent death with it.
Still, that doesn't matter so much, because the atmospherics are very effective in their widescreen B&W handsomeness, despite the fairly cheap FX. (Particularly the kind of tank miniatures more familiar from Godzilla-type films, with "stormy seas" clearly not much more than bathtub splashing in slo-mo.) The performances are decent enough, and while the story isn't terribly scary, there's a nice mood of creeping dread--you can almost feel the ocean air permeating inland, bringing ghosts and violent death with it.