Lucie is on a cruise with her husband Patrick to celebrate their wedding anniversary.
Her one time professor, Patrick is much older than Lucie. But when they met, he seemed somehow ageless, as all new gods appear in the eyes of those who worship them. He is a film director. A cult figure. But his success is starting to wane. She is a novelist on the cusp of winning a major prize. Her art has been forever overseen by him, now it may overshadow his.
For days they sail in the sun. They lie about drinking, reading, sleeping, having sex. There is nothing but dark water all around them.
But then a storm hits. When Patrick falls off the ship, Lucie is left alone, on the cruise ship, as the search for his body, the circumstances of his death and the truth about their marriage begins.