After receiving a large insurance settlement, young couple Gwen and George fulfill a dream by buying their own little island, a secluded, private paradise surrounded by a lush green landscape of plants.

What the real estate man didn't tell them was that a tragedy took place years earlier in the cool, clear pool near the house. And the waters still hold a terrifying centuries-old secret.

Soon George begins to notice strange changes in his wife. Always so reserved and demure, suddenly Gwen has become passionate and insatiable. And then there are the people who have mysteriously started to disappear....