On the eve of her 50th birthday, Sônia is faced with the passage of time. While the city that surrounds her is taken over by wildlife, she realizes in bewilderment that she is vanishing.

A documentary about the Voz Própria project, aimed at the therapeutic treatment of incarcerated women. An articulation between music and psychoanalysis, the film follows from inside the prison the rehearsals of these women for a show in the Chapel of the Female Penitentiary of São Paulo.