http://www.cinemablend.com/new/You-Miss ... 16012.html
Selected abstract of this article........
Take The Hunt for Red October and turn it into a ghost story and you'd have Below, the scariest movies ever to take place below the waves. In the midst of World War II the submarine U.S.S. Tiger Shark prowls the ocean on a rescue mission. But below the surface, the sub's walls are closing in as the ship's shell-shocked crew falls prey to sensory delusions and mental madness which send them over the edge. Or is it real? The ship could be haunted or cursed and they could be a damned crew sinking rapidly toward their doom. It's a psychological thriller and a war movie and a study in what happens when men spend too much time in confined spaces all at once. Or maybe it really is the story of a horrific underwater haunting. Below keeps you guessing and wondering and scared shitless throughout it's entire running time. For some reason though, this taut little thriller never got a decent theatrical release. It was dumped in a couple of theaters without advertising where, it never had a chance. Now's your chance. Grab a copy on DVD, if you can find it.