The Requin stars Alicia Silverstone as Jaelyn and James Tupper as Kyle, a married couple on a luxury holiday in Vietnam, they rent a cabin that floats on the water, we soon find out that Jaelyn recently lost a child in childbirth after she has a flashback upon seeing blood from Kyle's leg when he cuts it swimming.
Alicia Silverstone is very screamy in this film, and James Tupper is the husband who can't do anything right.
Before you know it a Monsoon has hit the area, the fancy cabin breaks from the ropes holding it, and they start floating out to see, despite having a chance to climb on a rock relatively near to shore, they decide it is too dangerous with the waves, and stay on the cabin, which is now basically a raft. Day turns to Night turns to Day to Night, and they are stuck in the middle of the sea. Kyle has a broken leg, and blood has attracted sharks. And that is the basic premise of this thriller/horror film.
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