Desc: Los motivos de Luz: Directed by Felipe Cazals. With Patricia Reyes Spíndola, Delia Casanova, Marta Aura, Ana Ofelia Murguía. Luz is in jail, accused of murdering her own children. Her husband and her mother-in-law say she killed them in cold blood. Dr. Rebollar tries to help the woman, but she refuses to remember anything. Luz thinks of jail as Purgatory: it's only one step to reach Heaven.