Sent to Mexico to help take care of aging Father Benito, young Father Amaro faces a moral challenge when he meets a 16-year-old girl who he starts an affair with. Likewise, the girl's mother had been having an affair with Father Benito. Father Amaro must choose between a holy or sinful life.

Gael García Bernal
as Padre Amaro

Ana Claudia Talancón
as Amelia

Sancho Gracia
as Padre Benito Díaz

Angélica Aragón
as Augustina Sanjuanera

Luisa Huertas
as Dionisia

Ernesto Gómez Cruz
as Obispo

Gastón Melo
as Martín

Damián Alcázar
as Padre Natalio Pérez

Andrés Montiel
as Rubén de la Rosa

Gerardo Moscoso
as Doc