Since 2006, Susana and Nélida, the protagonists of this story, have been incarcerated in the Women's Prison of Tucumán. They are accused of a crime they claim to be innocent of. Sentenced to 20 years in prison for the disappearance of a teacher who was their friend, the body has never been found. Susana and Nélida continue to pray every day for the body to be discovered and the mystery solved. Meanwhile, their lives have drastically changed over the last 16 years behind bars.