A Scottish man named Alan (played by Ian Bannen) is vacationing in Italy when he has an argument with his girlfriend Shiela (Vanessa Redgrave) and leaves with the mysterious and affluent Anna (Jeanne Moreau). She’s preoccupied with locating a sailor from years ago, a search that seems destined to fail, and they embark on her yacht for this seemingly pointless quest. Aboard the boat, they meet Louis (Orson Welles), wh…