"La loba" is a curiosity in Mexican cinema and perhaps the only motion picture this film industry ever dedicated to a she-wolf. It was written by Costa Rican Ramón Obón, the man behind Fernando Méndez's classic "El vampiro", and played by a cast of prestigious performers. The problems start when a physician (Joaquín Cordero) arrives at the farm of a senior colleague (José Elías Moreno), to ask for the hand of his daughter (Kitty de Hoyos), not knowing that she turns into a she-wolf with the full moon. This is not all: the film reserves a few more surprises for the viewer. It is interesting that the title character, when transformed, is played by an acrobat, and apparently the movie included a nude scene by De Hoyos, one of the pioneers of female nudity in commercial Mexican cinema, although the copy I saw only ran 78 minutes and there was an obvious cut when her full naked body was about to be revealed. Recommended to all horror film fans.