In Ireland, the lonely artist Sarah finds an unconscious castaway drowned at the beach with a broken leg. She brings him home and treats him. When he awakens, he has amnesia and can not remember who he is or what has happened to him. Sarah tells that they are isolated in an island and a boat will arrive with supplies only a couple of months later. However they are indeed in the continent but Sarah hides the location from the man. Along the days, she feels obsessed by him and she seduces him and they have a love affair. When he feels better, he decides to snoop around trying to leave the island. But the deranged Sarah will do anything to keep him with her.