It’s pretty much a 60’s “B” flick dipped in the not for the kiddies gore and nudity of early 80’s slasher flicks. But on that level Humanoids of the Deep works. You’re pretty much getting The Horror of Party Beach and Creature From the Black Lagoon with a bit of actual horror, but the film is more notorious for its added in post-production scenes of icky, horny sea creatures molesting a few young actresses after whipping their bathing suits off. That caused a bit of a stir back when I saw this in 1980 with a few friends and I also recall a handful of people screaming and doing an exit dash at the film’s somewhat ALIEN-inspired final scene.
Back then I didn’t like the film all that much because of its extremes and that it felt like two different films crunched together at the expense of the better one. But over time it’s become something of a mash-up of intentional and unintentional comedy, eyeball-rolling “shock” scenes and yes, well-known cast members who didn’t realize they’d be starring in a rather mean-spirited exploitation moneymaker that would garner a loyal fan base. For me it’s more of a great guilty pleasure when I look at it now. Albeit with a big blood red caution buoy in the water if you’re squeamish or easily annoyed by gore and gratuitous nudity in a “roughie” manner.
"DESTROY ALL FANBOYS!" 