This stupid, anti-environment wannabe "Jaws" is sad, pathetic, boring, poorly dubbed, and stupid. There is nothing redeeming about it.
Plot follows some shark/octopus creature-thingy that appears off the coast of Florida and kills some people (including a boring, stupid couple with a whiny wife and a silent husband who stabs himself with a fork for some reason). His ascent to the surface is always represented by a vague sideshot of something bumpy over and over. It makes no sense, it's horribly boring, and it's conspiracy plot sucks.
There are moments of camp that cannot be ignored: the same shot of the boat of the couple of the opening sequence THREE TIMES; the doctor slamming a dying patient's chest twenty times with a difibulator without stopping, even though he's clearly dead; the porno-esque soundtrack; the shot of the couple making love on the beach, with three different thems ("That us is getting ahead of us!") doing this; the ancient computer that sounds like Kermit the Frog; a beer-guzzling scientist screaming "I know!" a la Dr. Smith; the list goes on and on.
Oh, and everyone drinks at least thirty bears in the course of the movie (much noticed by Mike and the 'Bots) . . .
The MST3K version is their best episode, but it's certainly better than the movie itself. "This is how I like to go fishing, guys . . . with a flashlight and a flamethrower . . ." - Crow
One star for "Devil Fish"; seven for the MST3K version