*** Warning mild spoilers ***
The title says it all, a creature half shark and half octopus, codename S-11, has been created by scientists to assist the authorities in policing at sea attacking drug traffickers, pirates etc.
A bikini clad swimmer is being chased by a shark when S-11 appears and grabs the shark away from its intended meal with its tentacles and promptly despatches it. However they take the test run a little too far and the control unit is damaged, no longer responding to its creators the creature swims off, heading towards Mexico.
They hire a specialist to hunt it down and he heads off, accompanied by a female scientist, soon shadowed by a pushy female reporter and her sidekick.
The attacks are suitably ridiculous but that fits in nicely with the general tone of the movie as it does not take itself seriously, the shipboard DJ Captain Jack provides most of the light hearted moments with a few jibes at the ridiculous idea of a shark-octopus hybrid. Yet still it chomps its way unhindered through the local populace, swimmers, jet-skiers, yachts, no one is safe and even Producer Roger Corman himself manages a cameo appearance.
The end scene is absolutely mind-boggling as S-11 attacks on land although it is daft in the extreme as it seems to take more bullets than Clint Eastwood's bus in The Gauntlet.
Watch it in the correct frame of mind and it is good fun, it's not a great movie but I'll definitely be watching it again.
For anyone interested in shark-octopus hybrids checked out Lamberto Bava's Devouring Waves (aka Monster Shark ... aka Devilfish) currently only available in second hand shops or in the Mystery Science Theatre collection Mystery Science Theater 3000: Xix [DVD] [Region 1] [US Import] [NTSC