Mary, Mary, Bloody Mary

Mary, Mary, Bloody Mary is a 1975 slasher film directed by Juan López Moctezuma from a screenplay by Malcolm Marmorstein, and starring Cristina Ferrare, David Young, Helena Rojo, Arthur Hansel, Enrique Lucero and John Carradine. Its plot follows an American artist (Ferrare) who begins killing and drinking the blood of locals in a Mexican village.