Mexico, 1928. Santiago lives with his mother Alejandra and his stepfather Arturo. The apparent peace in which they live in is interrupted by the presence of some madness that only Santiago feels. David, Alejandra's husband, who disappeared and was believed dead, seems to have come back.
Pablo Kramsky, a crime reporter for a tabloid newspaper is the victim of a home invasion. A colleague offers him a gun for self-defense, and this leads Kramsky to kill a person when he feels endangered. Kramsky is not brilliant at his job, but when he writes an article about a possible vigilante taking justice into his own hands, he gains the recognition of his superior and the admiration of his coworkers. Thus, Kramsky repeats the formula, committing crimes and writing about them, creating a crime fighting national hero.
Felipe wishes to rediscover himself through Santiago. Santiago does not realize that he never ends up knowing someone and will discover what that someone is capable of doing.
Rodolfo Guerra, father of three daughters, wakes up one morning and decides he will not go to work; he is tired of being mistreated by his wife. In that one day in which the family routine is broken, Rodolfo opens his eyes and realizes that he is a perfect stranger in his own home. Rodolfo knows that he is risking his job, yet he still takes the time to put the puzzle pieces together to discover many unknown truths that are present among his daily life.
Uma história de amor transformou-se em assassinato contra o pano de fundo do massacre estudantil de 1968 cujo status não resolvido é finalmente resolvido em tensas condições de ameaça à vida. A história de um jornalista teimoso que empreende o esclarecimento e a apresentação à justiça do hediondo assassinato de um estudante quarenta anos depois representa um esforço dedicado para forçar um país a se reconciliar e encerrar eventos sociais e políticos trágicos na história de um país. Uma nação não pode permitir encobrimentos oficiais que procurem apagar e apagar os eventos da memória coletiva que impedem a marcha de uma nação em direção à justiça social
O filme conta a história de Anna, Russell e Bernardo, três personagens da classe média urbana carioca. Eles apostam tudo o que têm num arriscado jogo de paixões, que envolve a autoria de um livro de sucesso. Sua narrativa não-linear convida o espectador a montar um intrincado quebra-cabeças, cuja solução está tanto no presente quanto no passado dos personagens.