
"Humanoids from the Deep" is a 1980 science fiction horror film that exemplifies many hallmark elements of the sci-fi horror genre. It features a blend of speculative science—in this case, genetically augmented salmon—and the resulting unintended consequences, which manifest as mutated sea creatures terrorizing a coastal community. Typical genre elements present include scientific experimentation gone wrong, monstrous creatures emerging from nature, and the visceral horror of attacks against humans, heightening tension and fear. What distinguishes this film within the science fiction genre is its explicit combination of environmental themes with shock-driven adult horror, including controversial and graphic scenes that pushed boundaries for its time. This mix of eco-science fiction and exploitation horror sets it apart from more traditional or family-friendly sci-fi offerings, making it a cult classic noted for its blend of monster movie thrills and provocative content.