Solaris(1972) Is about a psychologist named Chris(Donatas Banionis )who is assigned by his government to go up to a space station at a planet called Solaris, very far away. They send a psychologist to the space station because the people there have some difficulties. Two of the scientists who were sent there were lost on the surface(the entire surface is water), and the pilot who went to rescue them reported seeing a child on the planet, although this is later determined to be a hallucination. Chris goes up to Solaris and when he gets there he finds someone else has died and there are only two scientists left. They tell him that they sometimes see other people, whom they assume to be hallucinations-- and he should expect the same will happen to him. Chris goes to sleep and when he wakes up his wife, Hari(Natalya Bondarchuk) is in the room with him. He asks how she got there, and she doesn't know. She did not travel to Solaris with him. It is hinted that his wife died many years before, and that the planet is producing these hallucinations by reading the minds of the visitors.