When car dealer Charlie Babbitt learns that his estranged father has died, he returns home to Cincinnati, where he discovers that he has a savant older brother named Raymond and that his father's $3 million fortune is being left to the mental institution in which Raymond lives. Motivated by his father's money, Charlie checks Raymond out of the facility in order to return with him to Los Angeles. The brothers' cross-country trip ends up changing both their lives.
Rain Man is a 1988 American road comedy-drama film directed by Barry Levinson and written by Barry Morrow and Ronald Bass. It tells the story of abrasive and selfish wheeler-dealer Charlie Babbitt, who discovers that his estranged father has died and bequeathed his multimillion-dollar estate to his other son, Raymond, an autistic savant whose existence Charlie was unaware of. Morrow created the character of Raymond after meeting real-life savant Kim Peek; his characterization was based on both Peek and Bill Sackter, a good friend of Morrow who was the subject of Bill, an earlier film that Morrow wrote.