High Tension Line is about society and culture, about Brazilian identity and historical contradictions. We look at people’s hair to approach these issues. What does the hair say about a person? A lot. With that in mind we’ve been to Rio de Janeiro, São Paulo, Salvador and Belém to hear women and men of all ages, representing Brazilian ethnic and social diversity, finding unexpected affinities and understanding both the individual and the group identity related to the hair. More than 40 characters to whom the hair is a fundamental trace of personality, helping them to send the world a message. In many cases the hair is a way to state an opinion: Black women and men in their fight against prejudice, teenagers gaining autonomy, white haired people, bald people, all of them adopting their hairstyle to face aesthetic dogmas established by mass media. The four cities, each one in a different part of the country, take us from the Amazon Forest to the seashore, from the poor outskirt’s favelas to the busy financial center of the country, from the majority of black people in Salvador to the indigenous background of Belém and to the ethnic miscellaneous of Sao Paulo and Rio.