The title says it all, because terror lurks in the deepest depths of our oceans! In this case, it’s an alien amphibian monster with shimmering scaly skin, creepy goggle-eyes, and a mohawk-crest fin, which mercilessly attacks an innocent underwater research station and—most likely—plans to wipe out humanity afterward. A wonderfully old-fashioned monster-trash bombshell in color from the cozy '60s. (RTL Nitro)