Have you always been fascinated by the Bermuda Triangle mystery? Would you also like to know more about the mystical forces or possible extraterrestrial activities that are at large on the ocean's floor? Well, then I suggest you watch National Geographic or dive into the relevant Wikipedia pages, because you most certainly won't find any answers in this largely goofy & low-budgeted Spanish/Italian co-production! It does, on the other hand, provide a good hour and half of brainless (albeit utterly senseless) exploitation entertainment for fans of sharks, demented plots, underwater footage and the ravishingly beautiful Janet Agren.
The beginning of the film is admittedly very intriguing, as it starts with the sudden return of professional diver/adventurer Andres Montoya after he, and an entire ship with crew, inexplicably vanished at sea more than six months ago. Andres doesn't have any recollection of where he spent the past half year, but it doesn't bother him too much. He gets back together with his fiance Angelica, even though she hooked up with his brother in the meantime, and cheerfully visits illegal cock-fight events. Andres is then hired by the despicable Arthur Kennedy to dive up a valuable box that got lost during a plane crash, and he realizes that he's drawn back to the mysterious bottom of the Bermuda area.
It must be highlighted that, even though completely random and disconnected from the rest of the film, "Cave of the Sharks" contains one very atmospheric and uncanny sequence. In a sort of flashback, a bunch of people on a yacht suddenly all become hypnotized and stoically step into the sea. One of the group's member is a little girl with the world's ugliest and creepiest doll, which is a cheap horror trick, I reckon, but still very effective. Furthermore, there also are sleeping (!) sharks, bare-knuckle fights and lots of nasty back-stabbing acts from Kennedy's character. The finale is extremely violent and doesn't solve anything, but that's exactly how we like our Italian cult!