The galaxy is full of Earth-like planets, but no one’s encountered an alien intelligence. What would happen if they did? Psychologist Kris Kelvin arrives at a scientific station orbiting the ocean planet Solaris. The crew are strung out and in some cases suicidal. They believe, contrary to the little evidence they have been able to gather, that the ocean below their feet is thinking. Not just that, it wants to communicate. At least it keeps sending them gifts and fulfilling their desires. It’s unbearable. They cannot stand it any more.