Molly McKay is a profoundly autistic twenty-something woman who has lived in an institution from a young age following her parents' death in a car accident. When the institution must close due to budget cuts, Molly is left in the care of her neurotypical, older brother, Buck McKay, an advertising executive and perennial bachelor. Buck forces her to undergo an experimental medical treatment, with unexpectedly drastic results.
Elisabeth Shue
as Molly McKay
Aaron Eckhart
as Buck McKay
Jill Hennessy
as Susan Brookes
Thomas Jane
as Sam
D.W. Moffett
as Mark Cottrell
Elizabeth Mitchell
as Beverly Trehare
Robert Harper
as Dr. Simmons
Elaine Hendrix
as Jennifer Thomas
Michael Paul Chan
as Domingo
Lucy Liu
as Brenda
Jon Pennell
as Gary McKay
Sarah Wynter
as Julie McKay
