directed by Ken Wiederhorn
USA
84 minutes
4 stars out of 5
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This is one of those movies that I find myself rewatching often because there's just nothing else out there that feels exactly like it. If your desired vibe is "aquatic Nazis" you have Death Ship, which is pretty solid, but there's something about Shock Waves that's just... I don't know, it's really good.
The film almost goes out of its way not to introduce us to our characters. Our main cast is made up of a small group of clothing-reticent thirty-somethings, a grouchy middle-aged couple, a galley hand, and a captain; neither of the latter two are long for this world. We get given names (sometimes) but no surnames, and nothing in the way of backstory whatsoever. We don't even really know why all of these people are together or how they're related to each other. It's never explained if these are friends who knew each other before the events of the film or if they all just happened to be on the boat together. The middle-aged couple are certainly outliers - if I had to take a guess, I'd say they're just all chartering the same boat; but get used to this kind of ambiguity, because the movie never resolves it. And that's as it should be.
In place of characters, we have premise. It's a scant premise, but it works. The driving concept behind the film is that towards the end of WWII the Nazis had begun experimenting on humans with the intent of producing super-soldiers, and a nest of these experiments were lying dormant in the waters off of some unspecified island somewhere until our cast of characters are accidentally rammed by a desiccated Nazi ship and run aground, disturbing the zombie soldiers and their lone caretaker. There's really very little rhyme or reason here; one exposition dump in the middle is all you get, and the rest of the time the movie is heavily into "show, don't tell". And, again, that is as it should be.
The island where the film is set has this really authentic boggy, humid, sweltering vibe; to absolutely no one's surprise, it was shot in Miami. This was evidently Wiederhorn's first feature film, which he made after having won the Academy Award for best student film with producer Reuben Trane. It was shot for around $200,000 and the only real reason that Trane and Wiederhorn ended up making a horror movie at all was because the investors thought that horror movies had a better chance of making their money back. The aquatic Nazi zombies idea was basically pulled out of a hat, from what it sounds like.
Oh yeah and somehow they managed to get Peter Cushing to be in this thing. I don't know how. Like a lot of movies Cushing was in in the '70s, it's weird that he's there, but it would have been a much worse movie without him. His character in this is interesting; he doesn't have that much screen time, all things considered, but he's important to the larger narrative. He certainly isn't a sympathetic character by any means, but in a sense it feels like he has more depth than the others because he's the only one who actually does stuff (or is implied to have done stuff) instead of having things happen to him. There's one shot in particular, a lingering couple of takes on a tank full of exotic fish, that was probably intended as nothing more than some interesting padding between scenes, but it made me think a lot more about this random guy who's presumably been hiding alone on an island for 30+ years: somebody's feeding those fish, and it ain't the Nazi zombies. What was he doing? Living alone in a decrepit old hotel, feeding fish, trying not to wake up the zombies? He doesn't want intruders around as a matter of course, but he never gives any indication whether he actually cares if they end up killed or if he just doesn't want them exposing the zombies to the outside world. It's odd, and I doubt any of this was intended to be thought about for more than five seconds.
This whole production, and the whole film itself, is so spare and feels so lacking in detail that none of it should really work, but the starkness and the lack of melodrama is exactly why it's so great - not to mention the absurdly good soundtrack. I think this movie is a cult classic because it's really hard to sell someone on it unless you can convince them to go in blind. Basically the only way to describe it is that it's Just Real Weird, Man. It is a whole entire vibe. Every time I watch this I like it more.