'Humanoids From The Deep' (1980) - Barbara Peters.

Independent film-making icon Roger Corman's infamous New World Pictures were responsible for some monstrously good splatter movies, but, few, if any, made quite the inventively grisly impact as Barbara Peter's sinisterly spawned, gruesomely gene-spliced, morbidly mutated, primordially percolated, flesh-feastingly ferocious, off-the scale scary 1980s fright flick 'Humanoids From The Deep'! Atmospherically set in the rough, windswept working-class seaside town of Noyo, the struggling local fishermen are 'reeling' from startling revelations that aggressively asinine amphibian anthropoids are gruesomely massacring their menfolk, and no less insistently inseminating their young, nubile, bikini-clad babes!!!?? And in the midst of this sub-aqua, super-sanguineous skin-shredding squall, B-Movie god, and all round Dudley Do-Right Doug McLure, and the deliciously villainous Vic Morrow must manfully form an uneasy alliance in order to arrest the increasingly bloody tide of toothsome terror that is churning the picturesque port of Noyo into a gore-drenched Charnel house!

While you could write the entire plot of Humanoids From The Deep's on the barnacled base of an old Olympia beer can, this excitingly eventful, beastly bonkers, fish-out-of-water B-movie classic has much to recommend it, gruesomely stuffed to the gills with bravura blood-spills, and the exquisitely eerie score by maestro James Horner is hook-laden terror treat! With appealingly larger-than-life performances from a game cast of familiar faces, some muscular film-making from Barbara Peters, and superlatively splattery FX by the legendary, game-changing monster-maker Rob Bottin, all of which raises this polymorphously perverse creature feature to the level of a magnificently mental midnight movie masterpiece! 

'The Monster Movie has evilly evolved, land, or sea, there's NOWHERE to hide from these hideously human humping, gizzard-guzzling, satanically spawned 'Humanoids From The Deep'! - Weirdlingwolf.