A psychologist arrives at a research space station called Prometheus, his mission to ascertain whether research into the mysterious planet of Solaris should be terminated. He finds Prometheus all but deserted, its straggling crew seemingly haunted by hallucinations of figures from their pasts.
When psychologist Kris Kelvin arrives at the scientific research station hovering high above the surface of Solaris, he finds the place deserted except for two scientists, who have been driven mad by some unknown horror. The researchers had been trying to investigate the ocean planet, and probe the secrets of its alien lifeforms.