Letter Beyond the Walls reconstructs the trajectory of HIV and AIDS with a focus on Brazil, through interviews with doctors, activists, patients and other actors, in addition to extensive archival material. From the initial panic to awareness campaigns, passing through the stigma imposed on people living with HIV, the documentary shows how society faced this epidemic in its deadliest phase over more than two decades. With this historical approach as its base, the film looks at the way HIV is viewed in today's society, revealing a picture of persistent misinformation and prejudice, which especially affects Brazil’s most historically vulnerable populations.

A trajetória histórica do vírus HIV e da AIDS no imaginário brasileiro, desde a epidemia que tomou o mundo e deixou milhares de vítimas nas décadas de 1980 e 1990, até os dias atuais. Através de entrevistas com médicos, pessoas que vivem com o vírus, ministros, personalidades e representantes de movimentos conscientizadores sobre a epidemia, o diretor André Canto propõe uma reflexão sobre a evolução dos tratamentos e os desafios e estigmas ainda enfrentados por portadores de HIV.