Just when you finally, absolutely, positively thought it was safe to go back into the water, up pops yet another Italian Jaws rip off—and slap me with a dorsal fin and chew my legs off if this isn't one of the most tedious of them all.
Directed by Raffaele Donato (with more than a bit of uncredited help from the king of Italian sleaze Joe D'amato), Deep Blood is a virtually joyless experience from start to finish, with a dreary plot, umpteen characters that are indistinguishable from one another, terrible acting (nearly all the performers fumble their lines at least once), and unconvincing shark attack scenes comprising of various odds and ends of stock footage badly inter-cut with the frenzied thrashing of the supposed victims.
The dreadful script offers a few unintentionally hilarious scenes, such as the sight of the film's heroes nipping to the local dynamite depot to stock up with enough high explosives to sink a battleship, or the hasty construction of a special shark attracting device that consists of a metal box with a flashing light on top, and further giggles might be had from the witnesses to the shark attacks, who run the gamut of emotions from 'mildy concerned' to 'slightly perturbed'; to be honest though, these brief moments of levity do little to compensate viewers for suffering through the rest of this bloody awful film.