Rain Man (1988)

Upon receiving news of his late father's passing, Charlie Babbitt decides to make a trip back to his hometown of Cincinnati. To his surprise, he uncovers a long-lost brother named Raymond, who possesses exceptional savant abilities. Adding to the intrigue is the revelation that their father's substantial $3 million inheritance is designated for the psychiatric facility where Raymond resides. Driven by the allure of wealth, Charlie liberates Raymond from the institution and embarks on a journey to Los Angeles with him. Little do they know that this cross-country adventure will profoundly alter the course of both their lives.