Some of these pictures and descriptions may give away plot details that you might not want to know before watching the film.
This is an erotic thriller with lots of sea snakes and a little bit of nudity. Andi is a beautiful young American woman who travels to a tropical island in the Phillipines to visit her boyfriend Tim who has hired a boat to take him out to hunt for sea snakes. He tells her he is paid $5000 per ounce of sea snake venom he collects. He also tells Andi that locals cal the sea snake "the eight minute snake" because its bite will kill you in eight minutes. Andi joins Tim diving and collecting sea snakes each day. We see Tim's collection of sea snakes in aquariums at his house and watch him milk their venom. Andi understandably attracts a lot of attention from the local men. After she does a sexy dance in a nightclub, the local policemen tells Tim that she is violating island taboos by dancing in public. He also tells Tim that the islanders worship the snakes and Tim promises to treat them with respect.
Dak, the captain of the boat Tim has hired, who looks like the long-haired shirtless guys on romance novel covers, takes her to a cave where the walls have paintings of a snake goddess who the islanders worshipped long ago, and to whom they sacrificed women. Dak becomes obsessed with Andi but she tells him to her alone. He doesn't, and rapes her repeatedly after he gets Tim out of the way by making sure that a sea snake gets loose when Tim is handling it, and it bites Tim. Tim is saved by antivenin but he becomes temporarily crippled. After that we see Andi taking a bath when she notices a sea snake in the tub with her. We don't know how it got there or why a salt water snake would want to be in fresh water but questions like these defeat the purpose of watching a dumb sexy thriller so ignore them. Andi is terrified as the snake slowly crawls up between her breasts towards her face, but Tim manages to sneak up in his wheelchair and grab it before she is bitten.
During a climactic fight between Dak and his rapist friends and Tim and Andi, who use bang sticks and spear guns to fight back, Dak puts Tim's hand into a sea snake aquarium and Tim is bitten again. Andi quickly shoots him up with antivenin and saves his life, but Dak is not so lucky. Earlier, Andi put several sea snakes in a tub apparently planning to use them as a weapon later. And sure enough, as Dak is attacking her she manages to push him into the tub full of snakes and he is bitten repeatedly on the face. He begs Andi for the antivenin but she says "oops" and drops the glass bottle on the floor wasting all the antivenin. I have to admit, watching a woman destroy men who raped makes any movie ending a happy one.
I don't know what kind of sea snakes we see in the movie, probably the species known by several names - colubrine sea krait, banded sea krait, or yellow-lipped sea krait, which is common in tropical Indo-Pacific oceanic waters. Some of the snakes we see are real, at least in the underwater footage of them swimming and the snakes in aquariums, but most of the snakes we see in the house are probably fakes with maybe some dead snakes thrown in for laughs.