Una Rata en la oscuridad (1979)

No stranger to the ever-fertile terrain where fear and arousal meet, in Una Rata en la oscuridad (1978) director Alfredo Salazar follows young, innocent Sonia (Anaís de Melo) and the more experienced Josefina (Ana Luisa Peluffo) through dreams and nightmares in which they are haunted by the lesbian caresses of the figure in a mysterious painting. Peluffo was nearing her fiftieth birthday during production, but she only groans more deeply for it. Fine wine all the way. Breasts and bush abound, but watch out for the surprise appearance of Ricardo Cortés in a revealing first for commercial Mexican cinema.