In 1946, in Soror city, three different stories intersect amid macabre events. While detectives Thomas and Carlos work in the unsolved cases of the mysterious body found in a tree and Serena Caires disappearance, those three stories get together suggesting the motivations of those respective crimes.

This is the story of Bianca, a young girl with psychological issues. At least that's what her parents think about her. Bianca always talks to Edward - the only one who seems to understand her better - while supernatural things happen in the house. 'The Letter' is a movie about secrets and follies. What someone is able to do to hide a secret?