Story was boring. Production was amateurish. Suspension of disbelief would have required strong intoxicants. Semi-comprehensible plot helped to mask the many weak points: Refrigerators that apparently float away, a lost shipwreck that should have been as difficult to find as a beached whale, and villains who expire merely by falling overboard. (Despite their shipboard lives, they apparenlty had never learned to swim.) The special effects would have embarassed Ed Wood.