I Will Walk Like a Crazy Horse (1973)

After the death of his mother, the epileptic Aden flees to the desert in order to avoid any police questioning, as they believe that he was responsible for his mother's death. It is in there that Aden meets the savage yet noble Marvel. They are like two sides of the same character. While the two men bond over their travels, Aden tries to convince him that civilization is much more desirable than the wilderness, although Marvel appears to disagree. During all of this the police continue their relentless pursuit of Aden.