Dark Tide is a 1994 American erotic thriller directed by Luca Bercovici and starring Brigitte Bako and Chris Sarandon, set on a tropical island where scientist Tim is collecting venom from poisonous sea snakes with his wife Andi. When Tim becomes increasingly obsessed and neglectful, Andi is seduced by Dak — the rugged and dangerous hired hand on the boat — and the two share a passionate sexual encounter behind Tim's back. When Andi tries to end the affair, a jilted and enraged Dak unleashes a terrifying series of escalating violent acts, turning the remote island into a deadly trap for everyone on board.