Aurelio Saravia is a powerful politician who holds office in Uruguay in the mid-1960's. When Aurelio's mistress kills herself, he adopts their illegitimate daughter Masangeles despite the stern objections of his wife Aurora. Masangeles finds herself growing up in a home ruled by a corrupt and self-centered tyrant and his manic colleagues while Uruguay teeters on the brink of civil war as bands of revolutionaries battle government militias. When she turns fourteen, Masangeles discovers a secret passageway in their home that leads to sanctuary in a nearby church which also serves as a storehouse for guns and ill-gotten cash. Teenage Masangeles falls in love with Santiago, her stepbrother who has joined the rebels fighting against the state, and she persuades him to take her virginity.

Uruguay, 1973. Having been crushed by the military dictatorship, surviving members of the Tupamaro guerillas are imprisoned and tortured. They must find a way to endure the coming 12 years.

Agustina is a young artist who maintains a loving relationship with Gabriel, a laborer that works in her house and with subtle manipulation does not reveal his dominant personality till later. The relationship turns gloomy and ends up becoming something they both never imagined. Gabriel also feels that something in the dark stalks them. Appealing to cunning she devises an original strategy to escape and avoid a violent outcome.