In this story we retrace the path of two brothers who meet and get to know each other following a legacy story that led Charlie to "kidnap" his brother from a psychiatric hospital, claiming the amount that his father had not paid him following his death. Raymond, an autistic scholar, and above all, the one who inherited the small fortune, is his brother from whom he was separated too early to know that this imaginary friend he called "Rain man" was him. What is interesting about this film is the link that is created between two very different people. Raymond, being autistic, has difficulty communicating like the others, although most people in his case do not know how to speak at all, moreover, it makes it difficult for him to express his emotions and he is very sensitive to his routine; all characteristics of autism. Later we will see that he also has extraordinary memorization abilities that his brother will not deprive himself of using for his purposes. Charlie works in a car sales company, rather charismatic, he knows how to speak and be heard and has no trouble expressing himself. Throughout their journey, travel the hotel by hotel, the kidnapping quickly becomes an opportunity to create new links destroyed in the past.