The Flesh Eaters (1964)

An alcoholic actress, her devoted assistant, and their pilot find themselves stranded on a remote island due to a storm. Unbeknownst to them, a rogue Nazi scientist is conducting gruesome experiments, using marine life to create a deadly solvent that consumes human flesh. As they struggle to survive, the trio faces relentless attacks from the tiny, flesh-eating creatures unleashed by the scientist's work. The fight for survival quickly becomes a terrifying battle against both the scientist's madness and the monstrous threats lurking in the water.