Belgrano neighborhood, Buenos Aires, Argentina. Someone is watching Fernando Berlasky from one of the countless windows in front of his apartment and sending him e-mails.

After many years away, Ariel is summoned by his distant father to his childhood home in the bustling Jewish quarter of Buenos Aires, known as El Once. Over the course of seven days, during the vibrant holiday of Purim, Ariel seeks to reconnect with his father, who runs a Jewish charity and is regarded as a big macher in the close-knit community, but was frequently absent due to his obligation to fulfill the Jewish quorum of having 10 men present at all funerals.

Winter 1862. In the midst of the Civil War, the US Army sends a company of volunteer soldiers to the western territories, with the task of patrolling the unchartered borderlands. As their mission ultimately changes course, the meaning behind their engagement begins to elude them.