Los muertos no hablan (The Dead Do Not Speak) is a 1958 Mexican western film directed by Jaime Salvador, starring Antonio Aguilar as Mauricio Rosales, and Flor Silvestre as Alondra, the femme fatale. The film follows another adventure of the rural policeman in a town notoriously known for its band of criminals led by "Alma Negra". It is the seventh installment of the Mauricio Rosales "El Rayo" film series, and the last subsequently until the 1980 film Sabor a sangre. It was filmed in Mexiscope, a rare cinematographic process specially used in productions of Rodolfo Rosas Priego.