The Rift. 1990.
A submarine known as Siren I has disappeared, NATO contacts the designer to find it with a crew in a experimental submarine Siren II to find out what happened and encounter something else.
Producer Dino De Laurentis gives us another underwater Sci-Fi horror after the release of Leviathan, that is a bit like The Abyss, this time it's one civilian and a naval crew trying to find a lost submarine and instead of encountering a alien they encounter toxic seaweed that develops a taste for humans. The acting isn't all that great except for Ray Wise who gives out the is he or isn't he planning something and R. Lee Ermey as the subs commanding officer. The monster effects at the core are a bit of a laugh but the blood splatter is there.
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