Bellas de noche (in English Beauties by Night), also known as Las ficheras, is a Mexican film directed by Miguel M. Delgado. It was filmed in 1975 and starring Sasha Montenegro and Jorge Rivero. It is regarded as the film that began the rise of Mexican sex comedies film genre as a largely mainstream genre in the Mexican Cinema for about a decade and a half; the term "fichera" coming to mean the entire genre.