Writer
An autistic child growing up in the 1940's and 50's with a mother who is bitter because her fear of success has denied to herself a possible career in opera. This anger translates into an over-protectiveness of her mentally ill daughter, even into the child's adulthood. But a loving sister, herself having an arm that is paralyzed, is a bastion against the limitations imposed by the mother and finally helps her sister to live a more full life.
Writer
Gregory Kingsley, a boy passed off onto social services by his natural mother and abused by his natural father, finds the foster family he is put into to be the type of family he needs and takes his natural mother to court to have her parental rights revoked so that he can be adopted by the Russes. The story is based on the real case of the boy who really did have to take this action to avoid being sent back into an unacceptable situation.
Teleplay
The visitor that you might expect for Christmas is not who shows up in this film. Instead, a mysterious stranger (Bridges) befriends a small-town eccentric (Mulligan) and confides in him that he is from another planet.