João is 13 years old and lives in the outback of Bahia. The arid landscape dominates everything. The bond between João and his father is broken. He has no friends and the people call him through the cruel nickname 'Son of Ox'. At the threshold of adolescence, João wants to escape from that place, where he does not seem to exist any possibility of he fit in. One day, a small circus arrives in the town. They are looking for a new clown. John is a silent boy, with an ingrained soul, and curiously, this make him the chosen one. At the circus, João develops a friendship with the Shaggy Clown, who encourages him to face his fears. 'Son of Ox' throws light on contemporary Brazil, revealing how the affections between men are woven in an extremely machist society, a universe of masculinity and discrimination, where is urgent to reinvent itself.